excercise 2 done

.vscode/settings.json

@@ -1,3 +1,4 @@
 {
-    "java.compile.nullAnalysis.mode": "automatic"
+    "java.compile.nullAnalysis.mode": "automatic",
+    "java.configuration.updateBuildConfiguration": "automatic"
 }

week1_TinsaeGhilay/.gitignore

@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

week1_TinsaeGhilay/.zed/debug.json

@@ -0,0 +1,18 @@
+// Project-local debug tasks
+//
+// For more documentation on how to configure debug tasks,
+// see: https://zed.dev/docs/debugger
+[
+  {
+    "adapter": "Java",
+    "request": "launch",
+    "label": "Launch Debugger",
+    // if your project has multiple entry points, specify the one to use:
+    // "mainClass": "com.myorganization.myproject.MyMainClass",
+    //
+    // this effectively sets a breakpoint at your program entry:
+    "stopOnEntry": true,
+    // the working directory for the debug process
+    "cwd": "$ZED_WORKTREE_ROOT"
+  }
+]

week1_TinsaeGhilay/Main.java

@@ -0,0 +1,62 @@
+import java.io.*;
+
+public class Main {
+
+    public static void main(String[] args) {
+        System.out.println("Hello world. This is a demo of Greeter");
+        // I think I hate me
+        Greeter greeter = new Greeter("Fuck you");
+        greeter.greet();
+    }
+}
+
+class Greeter {
+
+    String message;
+
+    // default message
+    public Greeter(String message) {
+        this.message = message;
+    }
+
+    // greet
+    public void greet() {
+        this.message = getUserInput("What's your message?");
+        String name = getUserInput("Who do you want to say that to?");
+
+        // if no message, we heve nothing to relay
+        if(this.message == null){
+            System.out.println("No messege to relay");
+            return;
+        }
+        
+        // if no name, we have no name to relay massage to
+        if(name == null){
+            System.out.println("No name to relay message to");
+            return;
+        }
+
+        // else we print message
+        System.out.println(message + "! " + name);
+    }
+
+    // get user input
+    private String getUserInput(String prompt) {
+        System.out.print(prompt + ": ");
+
+        try {
+            String input = "";
+            int i;
+            while ((i = System.in.read()) != '\n') {
+                input = input + (char) i;
+            }
+            if (!input.isEmpty()) {
+                return input;
+            }
+        } catch (IOException e) {
+            System.err.println("Error reading input");
+        }
+
+        return null;
+    }
+}

week1_TinsaeGhilay/Task1/Hello.idl

@@ -0,0 +1,8 @@
+module HelloApp
+{
+	interface Hello
+	{
+		string sayHello();
+		oneway void shutdown();
+	};
+};

week1_TinsaeGhilay/Task1/HelloApp/Hello.java

@@ -0,0 +1,13 @@
+package HelloApp;
+
+
+/**
+* HelloApp/Hello.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Hello.idl
+* Sunday, November 9, 2025 2:43:24 PM CET
+*/
+
+public interface Hello extends HelloOperations, org.omg.CORBA.Object, org.omg.CORBA.portable.IDLEntity 
+{
+} // interface Hello

week1_TinsaeGhilay/Task1/HelloApp/HelloHelper.java

@@ -0,0 +1,85 @@
+package HelloApp;
+
+
+/**
+* HelloApp/HelloHelper.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Hello.idl
+* Sunday, November 9, 2025 2:43:24 PM CET
+*/
+
+abstract public class HelloHelper
+{
+  private static String  _id = "IDL:HelloApp/Hello:1.0";
+
+  public static void insert (org.omg.CORBA.Any a, HelloApp.Hello that)
+  {
+    org.omg.CORBA.portable.OutputStream out = a.create_output_stream ();
+    a.type (type ());
+    write (out, that);
+    a.read_value (out.create_input_stream (), type ());
+  }
+
+  public static HelloApp.Hello extract (org.omg.CORBA.Any a)
+  {
+    return read (a.create_input_stream ());
+  }
+
+  private static org.omg.CORBA.TypeCode __typeCode = null;
+  synchronized public static org.omg.CORBA.TypeCode type ()
+  {
+    if (__typeCode == null)
+    {
+      __typeCode = org.omg.CORBA.ORB.init ().create_interface_tc (HelloApp.HelloHelper.id (), "Hello");
+    }
+    return __typeCode;
+  }
+
+  public static String id ()
+  {
+    return _id;
+  }
+
+  public static HelloApp.Hello read (org.omg.CORBA.portable.InputStream istream)
+  {
+    return narrow (istream.read_Object (_HelloStub.class));
+  }
+
+  public static void write (org.omg.CORBA.portable.OutputStream ostream, HelloApp.Hello value)
+  {
+    ostream.write_Object ((org.omg.CORBA.Object) value);
+  }
+
+  public static HelloApp.Hello narrow (org.omg.CORBA.Object obj)
+  {
+    if (obj == null)
+      return null;
+    else if (obj instanceof HelloApp.Hello)
+      return (HelloApp.Hello)obj;
+    else if (!obj._is_a (id ()))
+      throw new org.omg.CORBA.BAD_PARAM ();
+    else
+    {
+      org.omg.CORBA.portable.Delegate delegate = ((org.omg.CORBA.portable.ObjectImpl)obj)._get_delegate ();
+      HelloApp._HelloStub stub = new HelloApp._HelloStub ();
+      stub._set_delegate(delegate);
+      return stub;
+    }
+  }
+
+  public static HelloApp.Hello unchecked_narrow (org.omg.CORBA.Object obj)
+  {
+    if (obj == null)
+      return null;
+    else if (obj instanceof HelloApp.Hello)
+      return (HelloApp.Hello)obj;
+    else
+    {
+      org.omg.CORBA.portable.Delegate delegate = ((org.omg.CORBA.portable.ObjectImpl)obj)._get_delegate ();
+      HelloApp._HelloStub stub = new HelloApp._HelloStub ();
+      stub._set_delegate(delegate);
+      return stub;
+    }
+  }
+
+}

week1_TinsaeGhilay/Task1/HelloApp/HelloHolder.java

@@ -0,0 +1,38 @@
+package HelloApp;
+
+/**
+* HelloApp/HelloHolder.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Hello.idl
+* Sunday, November 9, 2025 2:43:24 PM CET
+*/
+
+public final class HelloHolder implements org.omg.CORBA.portable.Streamable
+{
+  public HelloApp.Hello value = null;
+
+  public HelloHolder ()
+  {
+  }
+
+  public HelloHolder (HelloApp.Hello initialValue)
+  {
+    value = initialValue;
+  }
+
+  public void _read (org.omg.CORBA.portable.InputStream i)
+  {
+    value = HelloApp.HelloHelper.read (i);
+  }
+
+  public void _write (org.omg.CORBA.portable.OutputStream o)
+  {
+    HelloApp.HelloHelper.write (o, value);
+  }
+
+  public org.omg.CORBA.TypeCode _type ()
+  {
+    return HelloApp.HelloHelper.type ();
+  }
+
+}

week1_TinsaeGhilay/Task1/HelloApp/HelloOperations.java

@@ -0,0 +1,15 @@
+package HelloApp;
+
+
+/**
+* HelloApp/HelloOperations.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Hello.idl
+* Sunday, November 9, 2025 2:43:24 PM CET
+*/
+
+public interface HelloOperations 
+{
+  String sayHello ();
+  void shutdown ();
+} // interface HelloOperations

week1_TinsaeGhilay/Task1/HelloApp/HelloPOA.java

@@ -0,0 +1,80 @@
+package HelloApp;
+
+
+/**
+* HelloApp/HelloPOA.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Hello.idl
+* Sunday, November 9, 2025 2:43:24 PM CET
+*/
+
+public abstract class HelloPOA extends org.omg.PortableServer.Servant
+ implements HelloApp.HelloOperations, org.omg.CORBA.portable.InvokeHandler
+{
+
+  // Constructors
+
+  private static java.util.Hashtable _methods = new java.util.Hashtable ();
+  static
+  {
+    _methods.put ("sayHello", new java.lang.Integer (0));
+    _methods.put ("shutdown", new java.lang.Integer (1));
+  }
+
+  public org.omg.CORBA.portable.OutputStream _invoke (String $method,
+                                org.omg.CORBA.portable.InputStream in,
+                                org.omg.CORBA.portable.ResponseHandler $rh)
+  {
+    org.omg.CORBA.portable.OutputStream out = null;
+    java.lang.Integer __method = (java.lang.Integer)_methods.get ($method);
+    if (__method == null)
+      throw new org.omg.CORBA.BAD_OPERATION (0, org.omg.CORBA.CompletionStatus.COMPLETED_MAYBE);
+
+    switch (__method.intValue ())
+    {
+       case 0:  // HelloApp/Hello/sayHello
+       {
+         String $result = null;
+         $result = this.sayHello ();
+         out = $rh.createReply();
+         out.write_string ($result);
+         break;
+       }
+
+       case 1:  // HelloApp/Hello/shutdown
+       {
+         this.shutdown ();
+         out = $rh.createReply();
+         break;
+       }
+
+       default:
+         throw new org.omg.CORBA.BAD_OPERATION (0, org.omg.CORBA.CompletionStatus.COMPLETED_MAYBE);
+    }
+
+    return out;
+  } // _invoke
+
+  // Type-specific CORBA::Object operations
+  private static String[] __ids = {
+    "IDL:HelloApp/Hello:1.0"};
+
+  public String[] _all_interfaces (org.omg.PortableServer.POA poa, byte[] objectId)
+  {
+    return (String[])__ids.clone ();
+  }
+
+  public Hello _this() 
+  {
+    return HelloHelper.narrow(
+    super._this_object());
+  }
+
+  public Hello _this(org.omg.CORBA.ORB orb) 
+  {
+    return HelloHelper.narrow(
+    super._this_object(orb));
+  }
+
+
+} // class HelloPOA

week1_TinsaeGhilay/Task1/HelloApp/_HelloStub.java

@@ -0,0 +1,88 @@
+package HelloApp;
+
+
+/**
+* HelloApp/_HelloStub.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Hello.idl
+* Sunday, November 9, 2025 2:43:24 PM CET
+*/
+
+public class _HelloStub extends org.omg.CORBA.portable.ObjectImpl implements HelloApp.Hello
+{
+
+  public String sayHello ()
+  {
+            org.omg.CORBA.portable.InputStream $in = null;
+            try {
+                org.omg.CORBA.portable.OutputStream $out = _request ("sayHello", true);
+                $in = _invoke ($out);
+                String $result = $in.read_string ();
+                return $result;
+            } catch (org.omg.CORBA.portable.ApplicationException $ex) {
+                $in = $ex.getInputStream ();
+                String _id = $ex.getId ();
+                throw new org.omg.CORBA.MARSHAL (_id);
+            } catch (org.omg.CORBA.portable.RemarshalException $rm) {
+                return sayHello (        );
+            } finally {
+                _releaseReply ($in);
+            }
+  } // sayHello
+
+  public void shutdown ()
+  {
+            org.omg.CORBA.portable.InputStream $in = null;
+            try {
+                org.omg.CORBA.portable.OutputStream $out = _request ("shutdown", false);
+                $in = _invoke ($out);
+                return;
+            } catch (org.omg.CORBA.portable.ApplicationException $ex) {
+                $in = $ex.getInputStream ();
+                String _id = $ex.getId ();
+                throw new org.omg.CORBA.MARSHAL (_id);
+            } catch (org.omg.CORBA.portable.RemarshalException $rm) {
+                shutdown (        );
+            } finally {
+                _releaseReply ($in);
+            }
+  } // shutdown
+
+  // Type-specific CORBA::Object operations
+  private static String[] __ids = {
+    "IDL:HelloApp/Hello:1.0"};
+
+  public String[] _ids ()
+  {
+    return (String[])__ids.clone ();
+  }
+
+  private void readObject (java.io.ObjectInputStream s) throws java.io.IOException
+  {
+     String str = s.readUTF ();
+     com.sun.corba.se.impl.orbutil.IORCheckImpl.check(str, "HelloApp._HelloStub");
+     String[] args = null;
+     java.util.Properties props = null;
+     org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init (args, props);
+   try {
+     org.omg.CORBA.Object obj = orb.string_to_object (str);
+     org.omg.CORBA.portable.Delegate delegate = ((org.omg.CORBA.portable.ObjectImpl) obj)._get_delegate ();
+     _set_delegate (delegate);
+   } finally {
+     orb.destroy() ;
+   }
+  }
+
+  private void writeObject (java.io.ObjectOutputStream s) throws java.io.IOException
+  {
+     String[] args = null;
+     java.util.Properties props = null;
+     org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init (args, props);
+   try {
+     String str = orb.object_to_string (this);
+     s.writeUTF (str);
+   } finally {
+     orb.destroy() ;
+   }
+  }
+} // class _HelloStub

week1_TinsaeGhilay/Task1/HelloClient.java

@@ -0,0 +1,38 @@
+// Copyright and License
+
+import HelloApp.*;
+import org.omg.CORBA.*;
+import org.omg.CosNaming.*;
+
+public class HelloClient {
+
+    static Hello helloImpl;
+
+    public static void main(String args[]) {
+        try {
+            // create and initialize the ORB
+            ORB orb = ORB.init(args, null);
+
+            // get the root naming context
+            org.omg.CORBA.Object objRef = orb.resolve_initial_references(
+                "NameService"
+            );
+            // Use NamingContextExt instead of NamingContext. This is
+            // part of the Interoperable naming Service.
+            NamingContextExt ncRef = NamingContextExtHelper.narrow(objRef);
+
+            // resolve the Object Reference in Naming
+            String name = "Hello";
+            helloImpl = HelloHelper.narrow(ncRef.resolve_str(name));
+
+            System.out.println(
+                "Obtained a handle on server object: " + helloImpl
+            );
+            System.out.println(helloImpl.sayHello());
+            helloImpl.shutdown();
+        } catch (Exception e) {
+            System.out.println("ERROR : " + e);
+            e.printStackTrace(System.out);
+        }
+    }
+}

week1_TinsaeGhilay/Task1/HelloServer.java

@@ -0,0 +1,73 @@
+// HelloServer.java
+import HelloApp.*;
+import org.omg.CosNaming.*;
+import org.omg.CORBA.*;
+import org.omg.PortableServer.*;
+import org.omg.PortableServer.POA;
+
+
+class HelloImpl extends HelloPOA {
+  private ORB orb;
+
+  public void setORB(ORB orb_val) {
+    orb = orb_val; 
+  }
+    
+  // implement sayHello() method
+  public String sayHello() {
+    return "\nHello world !!\n";
+  }
+    
+  // implement shutdown() method
+  public void shutdown() {
+    orb.shutdown(false);
+  }
+}
+
+
+public class HelloServer {
+
+  public static void main(String args[]) {
+    try{
+      // create and initialize the ORB
+      ORB orb = ORB.init(args, null);
+
+      // get reference to rootpoa and activate the POAManager
+      POA rootpoa = POAHelper.narrow(orb.resolve_initial_references("RootPOA"));
+      rootpoa.the_POAManager().activate();
+
+      // create servant and register it with the ORB
+      HelloImpl helloImpl = new HelloImpl();
+      helloImpl.setORB(orb); 
+
+      // get object reference from the servant
+      org.omg.CORBA.Object ref = rootpoa.servant_to_reference(helloImpl);
+      Hello href = HelloHelper.narrow(ref);
+          
+      // get the root naming context
+      org.omg.CORBA.Object objRef =
+          orb.resolve_initial_references("NameService");
+      // Use NamingContextExt which is part of the Interoperable
+      // Naming Service (INS) specification.
+      NamingContextExt ncRef = NamingContextExtHelper.narrow(objRef);
+
+      // bind the Object Reference in Naming
+      String name = "Hello";
+      NameComponent path[] = ncRef.to_name( name );
+      ncRef.rebind(path, href);
+
+      System.out.println("HelloServer ready and waiting ...");
+
+      // wait for invocations from clients
+      orb.run();
+    } 
+        
+      catch (Exception e) {
+        System.err.println("ERROR: " + e);
+        e.printStackTrace(System.out);
+      }
+          
+      System.out.println("HelloServer Exiting ...");
+        
+  }
+}

week1_TinsaeGhilay/Task2/Graphics.idl

@@ -0,0 +1,53 @@
+// task 2.
+
+
+
+// module
+module GraphicsApp
+{
+	// forward declaration of shape.
+	// because we use it in rectangle
+	interface GraphicalObject;
+
+	typedef sequence<GraphicalObject> ObjectSequence;
+
+	// rectangle contains shapes which GraphicalObjects a
+	interface Rectangle
+	{
+
+		// exception to be thrown if index out of range
+		exception IndexOutOfBounds {};
+
+		// hopping this will be an array of Graphical-objects.
+		attribute ObjectSequence objects;
+		
+		// function to add object
+		void addObject(in GraphicalObject newShape);
+
+		// and may be remove an object from a position?
+		void removeObjectAtPosition(in unsigned long index)
+			raises (IndexOutOfBounds);
+	};
+       
+	interface Shape
+	{
+		// draw to be overriden in java
+		void draw();
+
+		// and info
+		void showInfo();
+	};
+
+	// GraphicalShape object extends Shape
+	interface GraphicalObject : Shape
+	{
+		// unqualified member
+		attribute boolean is_filled;
+
+		// we cannot set this, so only getter will be implemented. 
+		// only time a shape can change is if it's in the matrix or if Dr.Strange is in town.
+		readonly attribute  string name;
+	};
+
+
+};

week1_TinsaeGhilay/Task2/GraphicsApp/GraphicalObject.java

@@ -0,0 +1,15 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/GraphicalObject.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+
+// GraphicalShape object extends Shape
+public interface GraphicalObject extends GraphicalObjectOperations, GraphicsApp.Shape, org.omg.CORBA.portable.IDLEntity 
+{
+} // interface GraphicalObject

week1_TinsaeGhilay/Task2/GraphicsApp/GraphicalObjectHelper.java

@@ -0,0 +1,87 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/GraphicalObjectHelper.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+
+// GraphicalShape object extends Shape
+abstract public class GraphicalObjectHelper
+{
+  private static String  _id = "IDL:GraphicsApp/GraphicalObject:1.0";
+
+  public static void insert (org.omg.CORBA.Any a, GraphicsApp.GraphicalObject that)
+  {
+    org.omg.CORBA.portable.OutputStream out = a.create_output_stream ();
+    a.type (type ());
+    write (out, that);
+    a.read_value (out.create_input_stream (), type ());
+  }
+
+  public static GraphicsApp.GraphicalObject extract (org.omg.CORBA.Any a)
+  {
+    return read (a.create_input_stream ());
+  }
+
+  private static org.omg.CORBA.TypeCode __typeCode = null;
+  synchronized public static org.omg.CORBA.TypeCode type ()
+  {
+    if (__typeCode == null)
+    {
+      __typeCode = org.omg.CORBA.ORB.init ().create_interface_tc (GraphicsApp.GraphicalObjectHelper.id (), "GraphicalObject");
+    }
+    return __typeCode;
+  }
+
+  public static String id ()
+  {
+    return _id;
+  }
+
+  public static GraphicsApp.GraphicalObject read (org.omg.CORBA.portable.InputStream istream)
+  {
+    return narrow (istream.read_Object (_GraphicalObjectStub.class));
+  }
+
+  public static void write (org.omg.CORBA.portable.OutputStream ostream, GraphicsApp.GraphicalObject value)
+  {
+    ostream.write_Object ((org.omg.CORBA.Object) value);
+  }
+
+  public static GraphicsApp.GraphicalObject narrow (org.omg.CORBA.Object obj)
+  {
+    if (obj == null)
+      return null;
+    else if (obj instanceof GraphicsApp.GraphicalObject)
+      return (GraphicsApp.GraphicalObject)obj;
+    else if (!obj._is_a (id ()))
+      throw new org.omg.CORBA.BAD_PARAM ();
+    else
+    {
+      org.omg.CORBA.portable.Delegate delegate = ((org.omg.CORBA.portable.ObjectImpl)obj)._get_delegate ();
+      GraphicsApp._GraphicalObjectStub stub = new GraphicsApp._GraphicalObjectStub ();
+      stub._set_delegate(delegate);
+      return stub;
+    }
+  }
+
+  public static GraphicsApp.GraphicalObject unchecked_narrow (org.omg.CORBA.Object obj)
+  {
+    if (obj == null)
+      return null;
+    else if (obj instanceof GraphicsApp.GraphicalObject)
+      return (GraphicsApp.GraphicalObject)obj;
+    else
+    {
+      org.omg.CORBA.portable.Delegate delegate = ((org.omg.CORBA.portable.ObjectImpl)obj)._get_delegate ();
+      GraphicsApp._GraphicalObjectStub stub = new GraphicsApp._GraphicalObjectStub ();
+      stub._set_delegate(delegate);
+      return stub;
+    }
+  }
+
+}

week1_TinsaeGhilay/Task2/GraphicsApp/GraphicalObjectHolder.java

@@ -0,0 +1,40 @@
+package GraphicsApp;
+
+/**
+* GraphicsApp/GraphicalObjectHolder.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+
+// GraphicalShape object extends Shape
+public final class GraphicalObjectHolder implements org.omg.CORBA.portable.Streamable
+{
+  public GraphicsApp.GraphicalObject value = null;
+
+  public GraphicalObjectHolder ()
+  {
+  }
+
+  public GraphicalObjectHolder (GraphicsApp.GraphicalObject initialValue)
+  {
+    value = initialValue;
+  }
+
+  public void _read (org.omg.CORBA.portable.InputStream i)
+  {
+    value = GraphicsApp.GraphicalObjectHelper.read (i);
+  }
+
+  public void _write (org.omg.CORBA.portable.OutputStream o)
+  {
+    GraphicsApp.GraphicalObjectHelper.write (o, value);
+  }
+
+  public org.omg.CORBA.TypeCode _type ()
+  {
+    return GraphicsApp.GraphicalObjectHelper.type ();
+  }
+
+}

week1_TinsaeGhilay/Task2/GraphicsApp/GraphicalObjectOperations.java

@@ -0,0 +1,24 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/GraphicalObjectOperations.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+
+// GraphicalShape object extends Shape
+public interface GraphicalObjectOperations  extends GraphicsApp.ShapeOperations
+{
+
+  // unqualified member
+  boolean is_filled ();
+
+  // unqualified member
+  void is_filled (boolean newIs_filled);
+
+  // only time a shape can change is if it's in the matrix or if Dr.Strange is in town.
+  String name ();
+} // interface GraphicalObjectOperations

week1_TinsaeGhilay/Task2/GraphicsApp/GraphicalObjectPOA.java

@@ -0,0 +1,120 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/GraphicalObjectPOA.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+
+// GraphicalShape object extends Shape
+public abstract class GraphicalObjectPOA extends org.omg.PortableServer.Servant
+ implements GraphicsApp.GraphicalObjectOperations, org.omg.CORBA.portable.InvokeHandler
+{
+
+  // Constructors
+
+  private static java.util.Hashtable _methods = new java.util.Hashtable ();
+  static
+  {
+    _methods.put ("_get_is_filled", new java.lang.Integer (0));
+    _methods.put ("_set_is_filled", new java.lang.Integer (1));
+    _methods.put ("_get_name", new java.lang.Integer (2));
+    _methods.put ("draw", new java.lang.Integer (3));
+    _methods.put ("showInfo", new java.lang.Integer (4));
+  }
+
+  public org.omg.CORBA.portable.OutputStream _invoke (String $method,
+                                org.omg.CORBA.portable.InputStream in,
+                                org.omg.CORBA.portable.ResponseHandler $rh)
+  {
+    org.omg.CORBA.portable.OutputStream out = null;
+    java.lang.Integer __method = (java.lang.Integer)_methods.get ($method);
+    if (__method == null)
+      throw new org.omg.CORBA.BAD_OPERATION (0, org.omg.CORBA.CompletionStatus.COMPLETED_MAYBE);
+
+    switch (__method.intValue ())
+    {
+
+  // unqualified member
+       case 0:  // GraphicsApp/GraphicalObject/_get_is_filled
+       {
+         boolean $result = false;
+         $result = this.is_filled ();
+         out = $rh.createReply();
+         out.write_boolean ($result);
+         break;
+       }
+
+
+  // unqualified member
+       case 1:  // GraphicsApp/GraphicalObject/_set_is_filled
+       {
+         boolean newIs_filled = in.read_boolean ();
+         this.is_filled (newIs_filled);
+         out = $rh.createReply();
+         break;
+       }
+
+
+  // only time a shape can change is if it's in the matrix or if Dr.Strange is in town.
+       case 2:  // GraphicsApp/GraphicalObject/_get_name
+       {
+         String $result = null;
+         $result = this.name ();
+         out = $rh.createReply();
+         out.write_string ($result);
+         break;
+       }
+
+
+  // draw to be overriden in java
+       case 3:  // GraphicsApp/Shape/draw
+       {
+         this.draw ();
+         out = $rh.createReply();
+         break;
+       }
+
+
+  // and info
+       case 4:  // GraphicsApp/Shape/showInfo
+       {
+         this.showInfo ();
+         out = $rh.createReply();
+         break;
+       }
+
+       default:
+         throw new org.omg.CORBA.BAD_OPERATION (0, org.omg.CORBA.CompletionStatus.COMPLETED_MAYBE);
+    }
+
+    return out;
+  } // _invoke
+
+  // Type-specific CORBA::Object operations
+  private static String[] __ids = {
+    "IDL:GraphicsApp/GraphicalObject:1.0", 
+    "IDL:GraphicsApp/Shape:1.0"};
+
+  public String[] _all_interfaces (org.omg.PortableServer.POA poa, byte[] objectId)
+  {
+    return (String[])__ids.clone ();
+  }
+
+  public GraphicalObject _this() 
+  {
+    return GraphicalObjectHelper.narrow(
+    super._this_object());
+  }
+
+  public GraphicalObject _this(org.omg.CORBA.ORB orb) 
+  {
+    return GraphicalObjectHelper.narrow(
+    super._this_object(orb));
+  }
+
+
+} // class GraphicalObjectPOA

week1_TinsaeGhilay/Task2/GraphicsApp/ObjectSequenceHelper.java

@@ -0,0 +1,62 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/ObjectSequenceHelper.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+abstract public class ObjectSequenceHelper
+{
+  private static String  _id = "IDL:GraphicsApp/ObjectSequence:1.0";
+
+  public static void insert (org.omg.CORBA.Any a, GraphicsApp.GraphicalObject[] that)
+  {
+    org.omg.CORBA.portable.OutputStream out = a.create_output_stream ();
+    a.type (type ());
+    write (out, that);
+    a.read_value (out.create_input_stream (), type ());
+  }
+
+  public static GraphicsApp.GraphicalObject[] extract (org.omg.CORBA.Any a)
+  {
+    return read (a.create_input_stream ());
+  }
+
+  private static org.omg.CORBA.TypeCode __typeCode = null;
+  synchronized public static org.omg.CORBA.TypeCode type ()
+  {
+    if (__typeCode == null)
+    {
+      __typeCode = GraphicsApp.GraphicalObjectHelper.type ();
+      __typeCode = org.omg.CORBA.ORB.init ().create_sequence_tc (0, __typeCode);
+      __typeCode = org.omg.CORBA.ORB.init ().create_alias_tc (GraphicsApp.ObjectSequenceHelper.id (), "ObjectSequence", __typeCode);
+    }
+    return __typeCode;
+  }
+
+  public static String id ()
+  {
+    return _id;
+  }
+
+  public static GraphicsApp.GraphicalObject[] read (org.omg.CORBA.portable.InputStream istream)
+  {
+    GraphicsApp.GraphicalObject value[] = null;
+    int _len0 = istream.read_long ();
+    value = new GraphicsApp.GraphicalObject[_len0];
+    for (int _o1 = 0;_o1 < value.length; ++_o1)
+      value[_o1] = GraphicsApp.GraphicalObjectHelper.read (istream);
+    return value;
+  }
+
+  public static void write (org.omg.CORBA.portable.OutputStream ostream, GraphicsApp.GraphicalObject[] value)
+  {
+    ostream.write_long (value.length);
+    for (int _i0 = 0;_i0 < value.length; ++_i0)
+      GraphicsApp.GraphicalObjectHelper.write (ostream, value[_i0]);
+  }
+
+}

week1_TinsaeGhilay/Task2/GraphicsApp/ObjectSequenceHolder.java

@@ -0,0 +1,39 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/ObjectSequenceHolder.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+public final class ObjectSequenceHolder implements org.omg.CORBA.portable.Streamable
+{
+  public GraphicsApp.GraphicalObject value[] = null;
+
+  public ObjectSequenceHolder ()
+  {
+  }
+
+  public ObjectSequenceHolder (GraphicsApp.GraphicalObject[] initialValue)
+  {
+    value = initialValue;
+  }
+
+  public void _read (org.omg.CORBA.portable.InputStream i)
+  {
+    value = GraphicsApp.ObjectSequenceHelper.read (i);
+  }
+
+  public void _write (org.omg.CORBA.portable.OutputStream o)
+  {
+    GraphicsApp.ObjectSequenceHelper.write (o, value);
+  }
+
+  public org.omg.CORBA.TypeCode _type ()
+  {
+    return GraphicsApp.ObjectSequenceHelper.type ();
+  }
+
+}

week1_TinsaeGhilay/Task2/GraphicsApp/Rectangle.java

@@ -0,0 +1,15 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/Rectangle.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+
+// rectangle contains shapes which GraphicalObjects a
+public interface Rectangle extends RectangleOperations, org.omg.CORBA.Object, org.omg.CORBA.portable.IDLEntity 
+{
+} // interface Rectangle

week1_TinsaeGhilay/Task2/GraphicsApp/RectangleHelper.java

@@ -0,0 +1,87 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/RectangleHelper.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+
+// rectangle contains shapes which GraphicalObjects a
+abstract public class RectangleHelper
+{
+  private static String  _id = "IDL:GraphicsApp/Rectangle:1.0";
+
+  public static void insert (org.omg.CORBA.Any a, GraphicsApp.Rectangle that)
+  {
+    org.omg.CORBA.portable.OutputStream out = a.create_output_stream ();
+    a.type (type ());
+    write (out, that);
+    a.read_value (out.create_input_stream (), type ());
+  }
+
+  public static GraphicsApp.Rectangle extract (org.omg.CORBA.Any a)
+  {
+    return read (a.create_input_stream ());
+  }
+
+  private static org.omg.CORBA.TypeCode __typeCode = null;
+  synchronized public static org.omg.CORBA.TypeCode type ()
+  {
+    if (__typeCode == null)
+    {
+      __typeCode = org.omg.CORBA.ORB.init ().create_interface_tc (GraphicsApp.RectangleHelper.id (), "Rectangle");
+    }
+    return __typeCode;
+  }
+
+  public static String id ()
+  {
+    return _id;
+  }
+
+  public static GraphicsApp.Rectangle read (org.omg.CORBA.portable.InputStream istream)
+  {
+    return narrow (istream.read_Object (_RectangleStub.class));
+  }
+
+  public static void write (org.omg.CORBA.portable.OutputStream ostream, GraphicsApp.Rectangle value)
+  {
+    ostream.write_Object ((org.omg.CORBA.Object) value);
+  }
+
+  public static GraphicsApp.Rectangle narrow (org.omg.CORBA.Object obj)
+  {
+    if (obj == null)
+      return null;
+    else if (obj instanceof GraphicsApp.Rectangle)
+      return (GraphicsApp.Rectangle)obj;
+    else if (!obj._is_a (id ()))
+      throw new org.omg.CORBA.BAD_PARAM ();
+    else
+    {
+      org.omg.CORBA.portable.Delegate delegate = ((org.omg.CORBA.portable.ObjectImpl)obj)._get_delegate ();
+      GraphicsApp._RectangleStub stub = new GraphicsApp._RectangleStub ();
+      stub._set_delegate(delegate);
+      return stub;
+    }
+  }
+
+  public static GraphicsApp.Rectangle unchecked_narrow (org.omg.CORBA.Object obj)
+  {
+    if (obj == null)
+      return null;
+    else if (obj instanceof GraphicsApp.Rectangle)
+      return (GraphicsApp.Rectangle)obj;
+    else
+    {
+      org.omg.CORBA.portable.Delegate delegate = ((org.omg.CORBA.portable.ObjectImpl)obj)._get_delegate ();
+      GraphicsApp._RectangleStub stub = new GraphicsApp._RectangleStub ();
+      stub._set_delegate(delegate);
+      return stub;
+    }
+  }
+
+}

week1_TinsaeGhilay/Task2/GraphicsApp/RectangleHolder.java

@@ -0,0 +1,40 @@
+package GraphicsApp;
+
+/**
+* GraphicsApp/RectangleHolder.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+
+// rectangle contains shapes which GraphicalObjects a
+public final class RectangleHolder implements org.omg.CORBA.portable.Streamable
+{
+  public GraphicsApp.Rectangle value = null;
+
+  public RectangleHolder ()
+  {
+  }
+
+  public RectangleHolder (GraphicsApp.Rectangle initialValue)
+  {
+    value = initialValue;
+  }
+
+  public void _read (org.omg.CORBA.portable.InputStream i)
+  {
+    value = GraphicsApp.RectangleHelper.read (i);
+  }
+
+  public void _write (org.omg.CORBA.portable.OutputStream o)
+  {
+    GraphicsApp.RectangleHelper.write (o, value);
+  }
+
+  public org.omg.CORBA.TypeCode _type ()
+  {
+    return GraphicsApp.RectangleHelper.type ();
+  }
+
+}

week1_TinsaeGhilay/Task2/GraphicsApp/RectangleOperations.java

@@ -0,0 +1,27 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/RectangleOperations.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+
+// rectangle contains shapes which GraphicalObjects a
+public interface RectangleOperations 
+{
+
+  // hopping this will be an array of shapes.
+  GraphicsApp.GraphicalObject[] objects ();
+
+  // hopping this will be an array of shapes.
+  void objects (GraphicsApp.GraphicalObject[] newObjects);
+
+  // function to add shape
+  void addObject (GraphicsApp.GraphicalObject newShape);
+
+  // and may be remove a shape from a position?
+  void removeObjectAtPosition (int index) throws GraphicsApp.RectanglePackage.IndexOutOfBounds;
+} // interface RectangleOperations

week1_TinsaeGhilay/Task2/GraphicsApp/RectanglePOA.java

@@ -0,0 +1,114 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/RectanglePOA.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+
+// rectangle contains shapes which GraphicalObjects a
+public abstract class RectanglePOA extends org.omg.PortableServer.Servant
+ implements GraphicsApp.RectangleOperations, org.omg.CORBA.portable.InvokeHandler
+{
+
+  // Constructors
+
+  private static java.util.Hashtable _methods = new java.util.Hashtable ();
+  static
+  {
+    _methods.put ("_get_objects", new java.lang.Integer (0));
+    _methods.put ("_set_objects", new java.lang.Integer (1));
+    _methods.put ("addObject", new java.lang.Integer (2));
+    _methods.put ("removeObjectAtPosition", new java.lang.Integer (3));
+  }
+
+  public org.omg.CORBA.portable.OutputStream _invoke (String $method,
+                                org.omg.CORBA.portable.InputStream in,
+                                org.omg.CORBA.portable.ResponseHandler $rh)
+  {
+    org.omg.CORBA.portable.OutputStream out = null;
+    java.lang.Integer __method = (java.lang.Integer)_methods.get ($method);
+    if (__method == null)
+      throw new org.omg.CORBA.BAD_OPERATION (0, org.omg.CORBA.CompletionStatus.COMPLETED_MAYBE);
+
+    switch (__method.intValue ())
+    {
+
+  // hopping this will be an array of shapes.
+       case 0:  // GraphicsApp/Rectangle/_get_objects
+       {
+         GraphicsApp.GraphicalObject $result[] = null;
+         $result = this.objects ();
+         out = $rh.createReply();
+         GraphicsApp.ObjectSequenceHelper.write (out, $result);
+         break;
+       }
+
+
+  // hopping this will be an array of shapes.
+       case 1:  // GraphicsApp/Rectangle/_set_objects
+       {
+         GraphicsApp.GraphicalObject newObjects[] = GraphicsApp.ObjectSequenceHelper.read (in);
+         this.objects (newObjects);
+         out = $rh.createReply();
+         break;
+       }
+
+
+  // function to add shape
+       case 2:  // GraphicsApp/Rectangle/addObject
+       {
+         GraphicsApp.GraphicalObject newShape = GraphicsApp.GraphicalObjectHelper.read (in);
+         this.addObject (newShape);
+         out = $rh.createReply();
+         break;
+       }
+
+
+  // and may be remove a shape from a position?
+       case 3:  // GraphicsApp/Rectangle/removeObjectAtPosition
+       {
+         try {
+           int index = in.read_ulong ();
+           this.removeObjectAtPosition (index);
+           out = $rh.createReply();
+         } catch (GraphicsApp.RectanglePackage.IndexOutOfBounds $ex) {
+           out = $rh.createExceptionReply ();
+           GraphicsApp.RectanglePackage.IndexOutOfBoundsHelper.write (out, $ex);
+         }
+         break;
+       }
+
+       default:
+         throw new org.omg.CORBA.BAD_OPERATION (0, org.omg.CORBA.CompletionStatus.COMPLETED_MAYBE);
+    }
+
+    return out;
+  } // _invoke
+
+  // Type-specific CORBA::Object operations
+  private static String[] __ids = {
+    "IDL:GraphicsApp/Rectangle:1.0"};
+
+  public String[] _all_interfaces (org.omg.PortableServer.POA poa, byte[] objectId)
+  {
+    return (String[])__ids.clone ();
+  }
+
+  public Rectangle _this() 
+  {
+    return RectangleHelper.narrow(
+    super._this_object());
+  }
+
+  public Rectangle _this(org.omg.CORBA.ORB orb) 
+  {
+    return RectangleHelper.narrow(
+    super._this_object(orb));
+  }
+
+
+} // class RectanglePOA

week1_TinsaeGhilay/Task2/GraphicsApp/RectanglePackage/IndexOutOfBounds.java

@@ -0,0 +1,25 @@
+package GraphicsApp.RectanglePackage;
+
+
+/**
+* GraphicsApp/RectanglePackage/IndexOutOfBounds.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+public final class IndexOutOfBounds extends org.omg.CORBA.UserException
+{
+
+  public IndexOutOfBounds ()
+  {
+    super(IndexOutOfBoundsHelper.id());
+  } // ctor
+
+
+  public IndexOutOfBounds (String $reason)
+  {
+    super(IndexOutOfBoundsHelper.id() + "  " + $reason);
+  } // ctor
+
+} // class IndexOutOfBounds

week1_TinsaeGhilay/Task2/GraphicsApp/RectanglePackage/IndexOutOfBoundsHelper.java

@@ -0,0 +1,72 @@
+package GraphicsApp.RectanglePackage;
+
+
+/**
+* GraphicsApp/RectanglePackage/IndexOutOfBoundsHelper.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+abstract public class IndexOutOfBoundsHelper
+{
+  private static String  _id = "IDL:GraphicsApp/Rectangle/IndexOutOfBounds:1.0";
+
+  public static void insert (org.omg.CORBA.Any a, GraphicsApp.RectanglePackage.IndexOutOfBounds that)
+  {
+    org.omg.CORBA.portable.OutputStream out = a.create_output_stream ();
+    a.type (type ());
+    write (out, that);
+    a.read_value (out.create_input_stream (), type ());
+  }
+
+  public static GraphicsApp.RectanglePackage.IndexOutOfBounds extract (org.omg.CORBA.Any a)
+  {
+    return read (a.create_input_stream ());
+  }
+
+  private static org.omg.CORBA.TypeCode __typeCode = null;
+  private static boolean __active = false;
+  synchronized public static org.omg.CORBA.TypeCode type ()
+  {
+    if (__typeCode == null)
+    {
+      synchronized (org.omg.CORBA.TypeCode.class)
+      {
+        if (__typeCode == null)
+        {
+          if (__active)
+          {
+            return org.omg.CORBA.ORB.init().create_recursive_tc ( _id );
+          }
+          __active = true;
+          org.omg.CORBA.StructMember[] _members0 = new org.omg.CORBA.StructMember [0];
+          org.omg.CORBA.TypeCode _tcOf_members0 = null;
+          __typeCode = org.omg.CORBA.ORB.init ().create_exception_tc (GraphicsApp.RectanglePackage.IndexOutOfBoundsHelper.id (), "IndexOutOfBounds", _members0);
+          __active = false;
+        }
+      }
+    }
+    return __typeCode;
+  }
+
+  public static String id ()
+  {
+    return _id;
+  }
+
+  public static GraphicsApp.RectanglePackage.IndexOutOfBounds read (org.omg.CORBA.portable.InputStream istream)
+  {
+    GraphicsApp.RectanglePackage.IndexOutOfBounds value = new GraphicsApp.RectanglePackage.IndexOutOfBounds ();
+    // read and discard the repository ID
+    istream.read_string ();
+    return value;
+  }
+
+  public static void write (org.omg.CORBA.portable.OutputStream ostream, GraphicsApp.RectanglePackage.IndexOutOfBounds value)
+  {
+    // write the repository ID
+    ostream.write_string (id ());
+  }
+
+}

week1_TinsaeGhilay/Task2/GraphicsApp/RectanglePackage/IndexOutOfBoundsHolder.java

@@ -0,0 +1,38 @@
+package GraphicsApp.RectanglePackage;
+
+/**
+* GraphicsApp/RectanglePackage/IndexOutOfBoundsHolder.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+public final class IndexOutOfBoundsHolder implements org.omg.CORBA.portable.Streamable
+{
+  public GraphicsApp.RectanglePackage.IndexOutOfBounds value = null;
+
+  public IndexOutOfBoundsHolder ()
+  {
+  }
+
+  public IndexOutOfBoundsHolder (GraphicsApp.RectanglePackage.IndexOutOfBounds initialValue)
+  {
+    value = initialValue;
+  }
+
+  public void _read (org.omg.CORBA.portable.InputStream i)
+  {
+    value = GraphicsApp.RectanglePackage.IndexOutOfBoundsHelper.read (i);
+  }
+
+  public void _write (org.omg.CORBA.portable.OutputStream o)
+  {
+    GraphicsApp.RectanglePackage.IndexOutOfBoundsHelper.write (o, value);
+  }
+
+  public org.omg.CORBA.TypeCode _type ()
+  {
+    return GraphicsApp.RectanglePackage.IndexOutOfBoundsHelper.type ();
+  }
+
+}

week1_TinsaeGhilay/Task2/GraphicsApp/Shape.java

@@ -0,0 +1,13 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/Shape.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+public interface Shape extends ShapeOperations, org.omg.CORBA.Object, org.omg.CORBA.portable.IDLEntity 
+{
+} // interface Shape

week1_TinsaeGhilay/Task2/GraphicsApp/ShapeHelper.java

@@ -0,0 +1,85 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/ShapeHelper.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+abstract public class ShapeHelper
+{
+  private static String  _id = "IDL:GraphicsApp/Shape:1.0";
+
+  public static void insert (org.omg.CORBA.Any a, GraphicsApp.Shape that)
+  {
+    org.omg.CORBA.portable.OutputStream out = a.create_output_stream ();
+    a.type (type ());
+    write (out, that);
+    a.read_value (out.create_input_stream (), type ());
+  }
+
+  public static GraphicsApp.Shape extract (org.omg.CORBA.Any a)
+  {
+    return read (a.create_input_stream ());
+  }
+
+  private static org.omg.CORBA.TypeCode __typeCode = null;
+  synchronized public static org.omg.CORBA.TypeCode type ()
+  {
+    if (__typeCode == null)
+    {
+      __typeCode = org.omg.CORBA.ORB.init ().create_interface_tc (GraphicsApp.ShapeHelper.id (), "Shape");
+    }
+    return __typeCode;
+  }
+
+  public static String id ()
+  {
+    return _id;
+  }
+
+  public static GraphicsApp.Shape read (org.omg.CORBA.portable.InputStream istream)
+  {
+    return narrow (istream.read_Object (_ShapeStub.class));
+  }
+
+  public static void write (org.omg.CORBA.portable.OutputStream ostream, GraphicsApp.Shape value)
+  {
+    ostream.write_Object ((org.omg.CORBA.Object) value);
+  }
+
+  public static GraphicsApp.Shape narrow (org.omg.CORBA.Object obj)
+  {
+    if (obj == null)
+      return null;
+    else if (obj instanceof GraphicsApp.Shape)
+      return (GraphicsApp.Shape)obj;
+    else if (!obj._is_a (id ()))
+      throw new org.omg.CORBA.BAD_PARAM ();
+    else
+    {
+      org.omg.CORBA.portable.Delegate delegate = ((org.omg.CORBA.portable.ObjectImpl)obj)._get_delegate ();
+      GraphicsApp._ShapeStub stub = new GraphicsApp._ShapeStub ();
+      stub._set_delegate(delegate);
+      return stub;
+    }
+  }
+
+  public static GraphicsApp.Shape unchecked_narrow (org.omg.CORBA.Object obj)
+  {
+    if (obj == null)
+      return null;
+    else if (obj instanceof GraphicsApp.Shape)
+      return (GraphicsApp.Shape)obj;
+    else
+    {
+      org.omg.CORBA.portable.Delegate delegate = ((org.omg.CORBA.portable.ObjectImpl)obj)._get_delegate ();
+      GraphicsApp._ShapeStub stub = new GraphicsApp._ShapeStub ();
+      stub._set_delegate(delegate);
+      return stub;
+    }
+  }
+
+}

week1_TinsaeGhilay/Task2/GraphicsApp/ShapeHolder.java

@@ -0,0 +1,38 @@
+package GraphicsApp;
+
+/**
+* GraphicsApp/ShapeHolder.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+public final class ShapeHolder implements org.omg.CORBA.portable.Streamable
+{
+  public GraphicsApp.Shape value = null;
+
+  public ShapeHolder ()
+  {
+  }
+
+  public ShapeHolder (GraphicsApp.Shape initialValue)
+  {
+    value = initialValue;
+  }
+
+  public void _read (org.omg.CORBA.portable.InputStream i)
+  {
+    value = GraphicsApp.ShapeHelper.read (i);
+  }
+
+  public void _write (org.omg.CORBA.portable.OutputStream o)
+  {
+    GraphicsApp.ShapeHelper.write (o, value);
+  }
+
+  public org.omg.CORBA.TypeCode _type ()
+  {
+    return GraphicsApp.ShapeHelper.type ();
+  }
+
+}

week1_TinsaeGhilay/Task2/GraphicsApp/ShapeOperations.java

@@ -0,0 +1,19 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/ShapeOperations.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+public interface ShapeOperations 
+{
+
+  // draw to be overriden in java
+  void draw ();
+
+  // and info
+  void showInfo ();
+} // interface ShapeOperations

week1_TinsaeGhilay/Task2/GraphicsApp/ShapePOA.java

@@ -0,0 +1,82 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/ShapePOA.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+public abstract class ShapePOA extends org.omg.PortableServer.Servant
+ implements GraphicsApp.ShapeOperations, org.omg.CORBA.portable.InvokeHandler
+{
+
+  // Constructors
+
+  private static java.util.Hashtable _methods = new java.util.Hashtable ();
+  static
+  {
+    _methods.put ("draw", new java.lang.Integer (0));
+    _methods.put ("showInfo", new java.lang.Integer (1));
+  }
+
+  public org.omg.CORBA.portable.OutputStream _invoke (String $method,
+                                org.omg.CORBA.portable.InputStream in,
+                                org.omg.CORBA.portable.ResponseHandler $rh)
+  {
+    org.omg.CORBA.portable.OutputStream out = null;
+    java.lang.Integer __method = (java.lang.Integer)_methods.get ($method);
+    if (__method == null)
+      throw new org.omg.CORBA.BAD_OPERATION (0, org.omg.CORBA.CompletionStatus.COMPLETED_MAYBE);
+
+    switch (__method.intValue ())
+    {
+
+  // draw to be overriden in java
+       case 0:  // GraphicsApp/Shape/draw
+       {
+         this.draw ();
+         out = $rh.createReply();
+         break;
+       }
+
+
+  // and info
+       case 1:  // GraphicsApp/Shape/showInfo
+       {
+         this.showInfo ();
+         out = $rh.createReply();
+         break;
+       }
+
+       default:
+         throw new org.omg.CORBA.BAD_OPERATION (0, org.omg.CORBA.CompletionStatus.COMPLETED_MAYBE);
+    }
+
+    return out;
+  } // _invoke
+
+  // Type-specific CORBA::Object operations
+  private static String[] __ids = {
+    "IDL:GraphicsApp/Shape:1.0"};
+
+  public String[] _all_interfaces (org.omg.PortableServer.POA poa, byte[] objectId)
+  {
+    return (String[])__ids.clone ();
+  }
+
+  public Shape _this() 
+  {
+    return ShapeHelper.narrow(
+    super._this_object());
+  }
+
+  public Shape _this(org.omg.CORBA.ORB orb) 
+  {
+    return ShapeHelper.narrow(
+    super._this_object(orb));
+  }
+
+
+} // class ShapePOA

week1_TinsaeGhilay/Task2/GraphicsApp/_GraphicalObjectStub.java

@@ -0,0 +1,157 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/_GraphicalObjectStub.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+
+// GraphicalShape object extends Shape
+public class _GraphicalObjectStub extends org.omg.CORBA.portable.ObjectImpl implements GraphicsApp.GraphicalObject
+{
+
+
+  // unqualified member
+  public boolean is_filled ()
+  {
+            org.omg.CORBA.portable.InputStream $in = null;
+            try {
+                org.omg.CORBA.portable.OutputStream $out = _request ("_get_is_filled", true);
+                $in = _invoke ($out);
+                boolean $result = $in.read_boolean ();
+                return $result;
+            } catch (org.omg.CORBA.portable.ApplicationException $ex) {
+                $in = $ex.getInputStream ();
+                String _id = $ex.getId ();
+                throw new org.omg.CORBA.MARSHAL (_id);
+            } catch (org.omg.CORBA.portable.RemarshalException $rm) {
+                return is_filled (        );
+            } finally {
+                _releaseReply ($in);
+            }
+  } // is_filled
+
+
+  // unqualified member
+  public void is_filled (boolean newIs_filled)
+  {
+            org.omg.CORBA.portable.InputStream $in = null;
+            try {
+                org.omg.CORBA.portable.OutputStream $out = _request ("_set_is_filled", true);
+                $out.write_boolean (newIs_filled);
+                $in = _invoke ($out);
+                return;
+            } catch (org.omg.CORBA.portable.ApplicationException $ex) {
+                $in = $ex.getInputStream ();
+                String _id = $ex.getId ();
+                throw new org.omg.CORBA.MARSHAL (_id);
+            } catch (org.omg.CORBA.portable.RemarshalException $rm) {
+                is_filled (newIs_filled        );
+            } finally {
+                _releaseReply ($in);
+            }
+  } // is_filled
+
+
+  // only time a shape can change is if it's in the matrix or if Dr.Strange is in town.
+  public String name ()
+  {
+            org.omg.CORBA.portable.InputStream $in = null;
+            try {
+                org.omg.CORBA.portable.OutputStream $out = _request ("_get_name", true);
+                $in = _invoke ($out);
+                String $result = $in.read_string ();
+                return $result;
+            } catch (org.omg.CORBA.portable.ApplicationException $ex) {
+                $in = $ex.getInputStream ();
+                String _id = $ex.getId ();
+                throw new org.omg.CORBA.MARSHAL (_id);
+            } catch (org.omg.CORBA.portable.RemarshalException $rm) {
+                return name (        );
+            } finally {
+                _releaseReply ($in);
+            }
+  } // name
+
+
+  // draw to be overriden in java
+  public void draw ()
+  {
+            org.omg.CORBA.portable.InputStream $in = null;
+            try {
+                org.omg.CORBA.portable.OutputStream $out = _request ("draw", true);
+                $in = _invoke ($out);
+                return;
+            } catch (org.omg.CORBA.portable.ApplicationException $ex) {
+                $in = $ex.getInputStream ();
+                String _id = $ex.getId ();
+                throw new org.omg.CORBA.MARSHAL (_id);
+            } catch (org.omg.CORBA.portable.RemarshalException $rm) {
+                draw (        );
+            } finally {
+                _releaseReply ($in);
+            }
+  } // draw
+
+
+  // and info
+  public void showInfo ()
+  {
+            org.omg.CORBA.portable.InputStream $in = null;
+            try {
+                org.omg.CORBA.portable.OutputStream $out = _request ("showInfo", true);
+                $in = _invoke ($out);
+                return;
+            } catch (org.omg.CORBA.portable.ApplicationException $ex) {
+                $in = $ex.getInputStream ();
+                String _id = $ex.getId ();
+                throw new org.omg.CORBA.MARSHAL (_id);
+            } catch (org.omg.CORBA.portable.RemarshalException $rm) {
+                showInfo (        );
+            } finally {
+                _releaseReply ($in);
+            }
+  } // showInfo
+
+  // Type-specific CORBA::Object operations
+  private static String[] __ids = {
+    "IDL:GraphicsApp/GraphicalObject:1.0", 
+    "IDL:GraphicsApp/Shape:1.0"};
+
+  public String[] _ids ()
+  {
+    return (String[])__ids.clone ();
+  }
+
+  private void readObject (java.io.ObjectInputStream s) throws java.io.IOException
+  {
+     String str = s.readUTF ();
+     com.sun.corba.se.impl.orbutil.IORCheckImpl.check(str, "GraphicsApp._GraphicalObjectStub");
+     String[] args = null;
+     java.util.Properties props = null;
+     org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init (args, props);
+   try {
+     org.omg.CORBA.Object obj = orb.string_to_object (str);
+     org.omg.CORBA.portable.Delegate delegate = ((org.omg.CORBA.portable.ObjectImpl) obj)._get_delegate ();
+     _set_delegate (delegate);
+   } finally {
+     orb.destroy() ;
+   }
+  }
+
+  private void writeObject (java.io.ObjectOutputStream s) throws java.io.IOException
+  {
+     String[] args = null;
+     java.util.Properties props = null;
+     org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init (args, props);
+   try {
+     String str = orb.object_to_string (this);
+     s.writeUTF (str);
+   } finally {
+     orb.destroy() ;
+   }
+  }
+} // class _GraphicalObjectStub

week1_TinsaeGhilay/Task2/GraphicsApp/_RectangleStub.java

@@ -0,0 +1,140 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/_RectangleStub.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+
+// rectangle contains shapes which GraphicalObjects a
+public class _RectangleStub extends org.omg.CORBA.portable.ObjectImpl implements GraphicsApp.Rectangle
+{
+
+
+  // hopping this will be an array of shapes.
+  public GraphicsApp.GraphicalObject[] objects ()
+  {
+            org.omg.CORBA.portable.InputStream $in = null;
+            try {
+                org.omg.CORBA.portable.OutputStream $out = _request ("_get_objects", true);
+                $in = _invoke ($out);
+                GraphicsApp.GraphicalObject $result[] = GraphicsApp.ObjectSequenceHelper.read ($in);
+                return $result;
+            } catch (org.omg.CORBA.portable.ApplicationException $ex) {
+                $in = $ex.getInputStream ();
+                String _id = $ex.getId ();
+                throw new org.omg.CORBA.MARSHAL (_id);
+            } catch (org.omg.CORBA.portable.RemarshalException $rm) {
+                return objects (        );
+            } finally {
+                _releaseReply ($in);
+            }
+  } // objects
+
+
+  // hopping this will be an array of shapes.
+  public void objects (GraphicsApp.GraphicalObject[] newObjects)
+  {
+            org.omg.CORBA.portable.InputStream $in = null;
+            try {
+                org.omg.CORBA.portable.OutputStream $out = _request ("_set_objects", true);
+                GraphicsApp.ObjectSequenceHelper.write ($out, newObjects);
+                $in = _invoke ($out);
+                return;
+            } catch (org.omg.CORBA.portable.ApplicationException $ex) {
+                $in = $ex.getInputStream ();
+                String _id = $ex.getId ();
+                throw new org.omg.CORBA.MARSHAL (_id);
+            } catch (org.omg.CORBA.portable.RemarshalException $rm) {
+                objects (newObjects        );
+            } finally {
+                _releaseReply ($in);
+            }
+  } // objects
+
+
+  // function to add shape
+  public void addObject (GraphicsApp.GraphicalObject newShape)
+  {
+            org.omg.CORBA.portable.InputStream $in = null;
+            try {
+                org.omg.CORBA.portable.OutputStream $out = _request ("addObject", true);
+                GraphicsApp.GraphicalObjectHelper.write ($out, newShape);
+                $in = _invoke ($out);
+                return;
+            } catch (org.omg.CORBA.portable.ApplicationException $ex) {
+                $in = $ex.getInputStream ();
+                String _id = $ex.getId ();
+                throw new org.omg.CORBA.MARSHAL (_id);
+            } catch (org.omg.CORBA.portable.RemarshalException $rm) {
+                addObject (newShape        );
+            } finally {
+                _releaseReply ($in);
+            }
+  } // addObject
+
+
+  // and may be remove a shape from a position?
+  public void removeObjectAtPosition (int index) throws GraphicsApp.RectanglePackage.IndexOutOfBounds
+  {
+            org.omg.CORBA.portable.InputStream $in = null;
+            try {
+                org.omg.CORBA.portable.OutputStream $out = _request ("removeObjectAtPosition", true);
+                $out.write_ulong (index);
+                $in = _invoke ($out);
+                return;
+            } catch (org.omg.CORBA.portable.ApplicationException $ex) {
+                $in = $ex.getInputStream ();
+                String _id = $ex.getId ();
+                if (_id.equals ("IDL:GraphicsApp/Rectangle/IndexOutOfBounds:1.0"))
+                    throw GraphicsApp.RectanglePackage.IndexOutOfBoundsHelper.read ($in);
+                else
+                    throw new org.omg.CORBA.MARSHAL (_id);
+            } catch (org.omg.CORBA.portable.RemarshalException $rm) {
+                removeObjectAtPosition (index        );
+            } finally {
+                _releaseReply ($in);
+            }
+  } // removeObjectAtPosition
+
+  // Type-specific CORBA::Object operations
+  private static String[] __ids = {
+    "IDL:GraphicsApp/Rectangle:1.0"};
+
+  public String[] _ids ()
+  {
+    return (String[])__ids.clone ();
+  }
+
+  private void readObject (java.io.ObjectInputStream s) throws java.io.IOException
+  {
+     String str = s.readUTF ();
+     com.sun.corba.se.impl.orbutil.IORCheckImpl.check(str, "GraphicsApp._RectangleStub");
+     String[] args = null;
+     java.util.Properties props = null;
+     org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init (args, props);
+   try {
+     org.omg.CORBA.Object obj = orb.string_to_object (str);
+     org.omg.CORBA.portable.Delegate delegate = ((org.omg.CORBA.portable.ObjectImpl) obj)._get_delegate ();
+     _set_delegate (delegate);
+   } finally {
+     orb.destroy() ;
+   }
+  }
+
+  private void writeObject (java.io.ObjectOutputStream s) throws java.io.IOException
+  {
+     String[] args = null;
+     java.util.Properties props = null;
+     org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init (args, props);
+   try {
+     String str = orb.object_to_string (this);
+     s.writeUTF (str);
+   } finally {
+     orb.destroy() ;
+   }
+  }
+} // class _RectangleStub

week1_TinsaeGhilay/Task2/GraphicsApp/_ShapeStub.java

@@ -0,0 +1,91 @@
+package GraphicsApp;
+
+
+/**
+* GraphicsApp/_ShapeStub.java .
+* Generated by the IDL-to-Java compiler (portable), version "3.2"
+* from Graphics.idl
+* Tuesday, November 11, 2025 6:46:29 PM CET
+*/
+
+public class _ShapeStub extends org.omg.CORBA.portable.ObjectImpl implements GraphicsApp.Shape
+{
+
+
+  // draw to be overriden in java
+  public void draw ()
+  {
+            org.omg.CORBA.portable.InputStream $in = null;
+            try {
+                org.omg.CORBA.portable.OutputStream $out = _request ("draw", true);
+                $in = _invoke ($out);
+                return;
+            } catch (org.omg.CORBA.portable.ApplicationException $ex) {
+                $in = $ex.getInputStream ();
+                String _id = $ex.getId ();
+                throw new org.omg.CORBA.MARSHAL (_id);
+            } catch (org.omg.CORBA.portable.RemarshalException $rm) {
+                draw (        );
+            } finally {
+                _releaseReply ($in);
+            }
+  } // draw
+
+
+  // and info
+  public void showInfo ()
+  {
+            org.omg.CORBA.portable.InputStream $in = null;
+            try {
+                org.omg.CORBA.portable.OutputStream $out = _request ("showInfo", true);
+                $in = _invoke ($out);
+                return;
+            } catch (org.omg.CORBA.portable.ApplicationException $ex) {
+                $in = $ex.getInputStream ();
+                String _id = $ex.getId ();
+                throw new org.omg.CORBA.MARSHAL (_id);
+            } catch (org.omg.CORBA.portable.RemarshalException $rm) {
+                showInfo (        );
+            } finally {
+                _releaseReply ($in);
+            }
+  } // showInfo
+
+  // Type-specific CORBA::Object operations
+  private static String[] __ids = {
+    "IDL:GraphicsApp/Shape:1.0"};
+
+  public String[] _ids ()
+  {
+    return (String[])__ids.clone ();
+  }
+
+  private void readObject (java.io.ObjectInputStream s) throws java.io.IOException
+  {
+     String str = s.readUTF ();
+     com.sun.corba.se.impl.orbutil.IORCheckImpl.check(str, "GraphicsApp._ShapeStub");
+     String[] args = null;
+     java.util.Properties props = null;
+     org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init (args, props);
+   try {
+     org.omg.CORBA.Object obj = orb.string_to_object (str);
+     org.omg.CORBA.portable.Delegate delegate = ((org.omg.CORBA.portable.ObjectImpl) obj)._get_delegate ();
+     _set_delegate (delegate);
+   } finally {
+     orb.destroy() ;
+   }
+  }
+
+  private void writeObject (java.io.ObjectOutputStream s) throws java.io.IOException
+  {
+     String[] args = null;
+     java.util.Properties props = null;
+     org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init (args, props);
+   try {
+     String str = orb.object_to_string (this);
+     s.writeUTF (str);
+   } finally {
+     orb.destroy() ;
+   }
+  }
+} // class _ShapeStub

week1_TinsaeGhilay/Task2/GraphicsClient.java

@@ -0,0 +1,98 @@
+// Copyright and License 
+ 
+import GraphicsApp.*;
+import org.omg.CosNaming.*;
+import org.omg.CORBA.*;
+import org.omg.PortableServer.*;
+import org.omg.PortableServer.POA;
+
+// because we need GraphicalObject we have to do an implementation of it here. 
+// reversing the HelloServer.java here
+class Graph extends GraphicalObjectPOA {
+    private boolean filled;
+    private String name;
+    private ORB orb;
+
+    public Graph(String name, boolean filled) {
+        this.name = name;
+        this.filled = filled;
+    }
+
+    public void setORB(ORB orb_val) {
+        this.orb = orb_val; 
+    }
+
+    // draw
+    public void draw() {
+        System.out.println("Drawing graph: " + name);
+    }
+    
+    // show info
+    public void showInfo() {
+        System.out.println("Graph Info -> Name: " + name + ", Filled: " + filled);
+    }
+
+    // getter for is filled
+    public boolean is_filled() {
+        return filled;
+    }
+
+    // setter for is filled
+    public void is_filled(boolean value) {
+        this.filled = value;
+    }
+
+
+    // name getter, not setting it.
+    public String name() {
+        return name;
+    }
+}
+
+public class GraphicsClient
+{
+  static Rectangle rect;
+
+  public static void main(String args[])
+    {
+      try{
+        // create and initialize the ORB
+        ORB orb = ORB.init(args, null);
+
+        // get reference to rootpoa and activate the POAManager
+        POA rootpoa = POAHelper.narrow(orb.resolve_initial_references("RootPOA"));
+        rootpoa.the_POAManager().activate();
+
+        // reversing steps from HelloServer here as well.
+        // create servant and register it with the ORB
+        Graph graph = new Graph("Circle", true);
+        graph.setORB(orb); 
+
+        // get object reference from the servant
+        org.omg.CORBA.Object ref = rootpoa.servant_to_reference(graph);
+        GraphicalObject object = GraphicalObjectHelper.narrow(ref);
+
+
+        // get the root naming context
+        org.omg.CORBA.Object objRef = orb.resolve_initial_references("NameService");
+        
+        // Use NamingContextExt instead of NamingContext. This is 
+        // part of the Interoperable naming Service.  
+        NamingContextExt ncRef = NamingContextExtHelper.narrow(objRef);
+ 
+        // resolve the Object Reference in Naming
+        String name = "Graphics";
+        rect = RectangleHelper.narrow(ncRef.resolve_str(name));
+
+
+        System.out.println("Obtained a handle on server object: " + rect);
+        rect.addObject(object);
+	    rect.removeObjectAtPosition(0);
+
+        } catch (Exception e) {
+          System.out.println("ERROR : " + e) ;
+          e.printStackTrace(System.out);
+          }
+    }
+
+}

week1_TinsaeGhilay/Task2/GraphicsServer.java

@@ -0,0 +1,105 @@
+// GraphicsServer.java
+
+// I am not testing this server for fear of errors 
+// because if there are errors, I wont stop trying to debugg it untill tomorrow.
+import GraphicsApp.*;
+import org.omg.CosNaming.*;
+import org.omg.CORBA.*;
+import org.omg.PortableServer.*;
+import org.omg.PortableServer.POA;
+import java.util.*;
+
+
+// overriding the rectangle Class. 
+// copying from the Hello Project, I believe we extend the RectanglePOA class
+class Rect extends RectanglePOA {
+    private ORB orb;
+    private GraphicalObject[] objects;
+
+    public Rect() {
+        this.objects = new GraphicalObject[0];
+    }
+
+    public void setORB(ORB orb_val) {
+        this.orb = orb_val; 
+    }
+
+    // getter
+    public GraphicalObject[] objects() {
+        return this.objects;
+    }
+
+    // setter
+    public void objects(GraphicalObject[] newObject) {
+        this.objects = newObject;
+    }
+
+    // add objects
+    public void addObject(GraphicalObject newObject) {
+        List<GraphicalObject> temp = new ArrayList<>(Arrays.asList(this.objects));
+        temp.add(newObject);
+        this.objects = temp.toArray(new GraphicalObject[0]);
+    }
+
+
+    // remove an object
+    public void removeObjectAtPosition(int index)
+        throws GraphicsApp.RectanglePackage.IndexOutOfBounds {
+
+        if (index < 0 || index >= this.objects.length) {
+            throw new GraphicsApp.RectanglePackage.IndexOutOfBounds();
+        }
+
+        List<GraphicalObject> temp = new ArrayList<>(Arrays.asList(this.objects));
+        temp.remove(index);
+        this.objects = temp.toArray(new GraphicalObject[0]);
+    }
+}
+
+
+public class GraphicsServer {
+
+  public static void main(String args[]) {
+    try{
+      // create and initialize the ORB
+      ORB orb = ORB.init(args, null);
+
+      // get reference to rootpoa and activate the POAManager
+      POA rootpoa = POAHelper.narrow(orb.resolve_initial_references("RootPOA"));
+      rootpoa.the_POAManager().activate();
+
+      // create servant and register it with the ORB
+      Rect rect = new Rect();
+      rect.setORB(orb); 
+
+      // get object reference from the servant
+      org.omg.CORBA.Object ref = rootpoa.servant_to_reference(rect);
+      Rectangle href = RectangleHelper.narrow(ref);
+          
+      // get the root naming context
+      org.omg.CORBA.Object objRef = orb.resolve_initial_references("NameService");
+
+      // Use NamingContextExt which is part of the Interoperable
+      // Naming Service (INS) specification.
+      NamingContextExt ncRef = NamingContextExtHelper.narrow(objRef);
+
+      // bind the Object Reference in Naming
+      String name = "Graphics";
+      NameComponent path[] = ncRef.to_name( name );
+      ncRef.rebind(path, href);
+
+      System.out.println("GraphicsServer ready and waiting ...");
+
+      // wait for invocations from clients
+      orb.run();
+    } 
+        
+      catch (Exception e) {
+        System.err.println("ERROR: " + e);
+        e.printStackTrace(System.out);
+      }
+          
+      System.out.println("GraphicsServer Exiting ...");
+        
+  }
+}

week1_TinsaeGhilay/app/.gitignore

@@ -0,0 +1 @@
+/build

week1_TinsaeGhilay/app/build.gradle

@@ -0,0 +1,37 @@
+plugins {
+    id 'com.android.application'
+}
+
+android {
+    compileSdk 31
+
+    defaultConfig {
+        applicationId "com.tgk.test"
+        minSdk 21
+        targetSdk 31
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.appcompat:appcompat:1.3.1'
+    implementation 'com.google.android.material:material:1.4.0'
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+}

week1_TinsaeGhilay/app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

week1_TinsaeGhilay/app/src/androidTest/java/com/tgk/test/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.tgk.test;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.tgk.test", appContext.getPackageName());
+    }
+}

week1_TinsaeGhilay/app/src/main/AndroidManifest.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.tgk.test">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Test" />
+
+</manifest>

week1_TinsaeGhilay/app/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>

week1_TinsaeGhilay/app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

week1_TinsaeGhilay/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

week1_TinsaeGhilay/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

week1_TinsaeGhilay/app/src/main/res/values-night/themes.xml

@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.Test" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_200</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/black</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_200</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>