// Swing JToggleButton Example - Derek Molloy

  import javax.swing.*;
  import java.awt.*; 
  import java.awt.event.*;
  import javax.swing.border.*;

  public class JToggleButtonExample extends JFrame implements ActionListener
  {	
	JToggleButton toggleButton;
	JTextField theTextField;
	
	public JToggleButtonExample()
	{
		super("JToggleButton Example");

		JPanel p = new JPanel();
		p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
		p.setBorder(new TitledBorder("Toggle Buttons:"));

		toggleButton = new JToggleButton("A Toggle Button");
		toggleButton.addActionListener(this);
		
		theTextField = new JTextField(10);
	
		p.add(toggleButton);
		p.add(theTextField);
		this.getContentPane().add(p);

		this.pack();	// set the size automatically
		this.show();	// display the frame
	}
	
	public void actionPerformed(ActionEvent e)
	{
		if (e.getSource().equals(toggleButton))
		{
		  theTextField.setText("State: " + toggleButton.isSelected());			
		}
	}
	
	public static void main(String[] args)
	{
		new JToggleButtonExample();
	}
  }