If all you need is an empty frame when clicking the save game option, here is what you can do
public class Hw extends JFrame implements ActionListener{
......
saveItem.addActionListener(this);
.................
public void actionPerformed(ActionEvent e) {
JFrame newFrame = new JFrame("Empty frame");
newFrame.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
newFrame.setSize(200,200);
newFrame.setVisible(true);
}
}
This would open an empty frame when you click the save game.you can do whatever you want in it.
Hope I got your question correct...
-R