small changes to factory and implemented rmi awareness with a simple register/deregister program

rmi_Awareness/LaunchClient.java

@@ -0,0 +1,55 @@
+package rmi_Awareness;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.MalformedURLException;
+import java.rmi.Naming;
+import java.rmi.NotBoundException;
+import java.rmi.RemoteException;
+
+
+/**
+ * Created by Giovanni on 01/12/2014.
+ */
+public class LaunchClient {
+
+    public static void main (String[] args) {
+
+        BufferedReader i = new BufferedReader(new InputStreamReader(System.in));
+
+        register_to_server rs = null;
+        call_me_back client = null;
+        try {
+            client = new Client();
+            Object server_object = (Object) Naming.lookup("rmi://localhost/HelloServer");
+            rs = (register_to_server) server_object;
+            rs.register(client);
+            ((HelloInterface) server_object).sayhello();
+
+            System.out.println("Press enter to exit and deregister");
+            i.readLine();
+
+        } catch (RemoteException e) {
+            e.printStackTrace();
+        } catch (MalformedURLException e) {
+            e.printStackTrace();
+        } catch (NotBoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                rs.deregister(client);
+            } catch (RemoteException e) {
+                e.printStackTrace();
+            }
+            System.exit(0);
+        }
+
+
+    }
+
+
+}