copy/paste input withouth functionality

src/ui/view/GUI.java

@@ -334,6 +334,36 @@ public class GUI<E> implements CategoryListener {
 			}
 		});
 		
+		String cntrlCDown = "controlZ";
+		inputMap.put(KeyStroke.getKeyStroke("control C"), cntrlCDown);
+		actionMap.put(cntrlCDown, new AbstractAction() {
+
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				System.out.println("copy");
+			}
+		});
+		
+		String cntrlVDown = "controlV";
+		inputMap.put(KeyStroke.getKeyStroke("control V"), cntrlVDown);
+		actionMap.put(cntrlVDown, new AbstractAction() {
+
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				System.out.println("paste");
+			}
+		});
+		
+		String cntrlXDown = "controlX";
+		inputMap.put(KeyStroke.getKeyStroke("control X"), cntrlXDown);
+		actionMap.put(cntrlXDown, new AbstractAction() {
+
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				System.out.println("cut");
+			}
+		});
+		
 		frmCyberPhysical.setJMenuBar(menuBar);
 
 		frmCyberPhysical.setIconImage(new ImageIcon(this.getClass().getResource("/Images/Dummy_House.png")).getImage()