returning a value from a custom dialog

[Leon Glass]

public void showNewLevelDialog()
	{
		jp = new JPanel();
		jp.setLayout(new GridLayout(5, 2, 5, 5));
				
		JLabel lName = new JLabel("Name:");
		final JTextField tName = new JTextField(10);
		lName.setLabelFor(tName);
		jp.add(lName); jp.add(tName);
		
		JLabel lWidth = new JLabel("Width:");
		final JTextField tWidth = new JTextField(10);
		lWidth.setLabelFor(tWidth);
		jp.add(lWidth); jp.add(tWidth);
		
		JLabel lHeight = new JLabel("Height:");
		final JTextField tHeight = new JTextField(10);
		lHeight.setLabelFor(tHeight);
		jp.add(lHeight); jp.add(tHeight);
		
		JLabel lDim = new JLabel("Dimension");
		final JTextField tDim = new JTextField(10);
		lDim.setLabelFor(tDim);
		jp.add(lDim); jp.add(tDim);
		
		JButton okButton = new JButton("OK");
		okButton.addActionListener(new ActionListener()
		{
			public void actionPerformed(ActionEvent e)
			{
				input = new String[4];
				input[0] = tName.getText();
				input[1] = tWidth.getText();
				input[2] = tHeight.getText();
				input[3] = tDim.getText();
				setVisible(false);
			}
		});
		jp.add(okButton);
		JButton cancelButton = new JButton("Cancel");
		cancelButton.addActionListener(new ActionListener()
		{
			public void actionPerformed(ActionEvent e)
			{
				setVisible(false);
			}
		});
		jp.add(cancelButton);
		add(jp);
		setTitle("Enter New Level Data");
		setSize(200, 150);
		setVisible(true);
	}

I would like to alter the following code so that showNewLevel() is able to return the input[]. If I just alter the signature and add the return as it is I get a return value of null I think because the actionlistener isn't called when I think it is. How can I make this method have similar functionality to JOptionPane.ShowInputDialog()?

[Leon Glass]

It seems that I only needed to set my dialog as modal and I have the functionality I require.