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Message:

Are you kiddin?

Posted by Jay on November 09, 2001 at 9:06 PM

JButton does not directly provide a method like isPressed(), nor it implements ButtonModel but its parent AbstractButton has a ButtonModel which determines the button state. (This is an implementation of Model-View-Controller design pattern)

Anyways, heres the code you asked for.

import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.event.ChangeListener;
import javax.swing.event.ChangeEvent;
import java.awt.BorderLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
public class Test extends JFrame implements ChangeListener
{
    JButton button;
    JLabel status;
    JPanel panel;
    public Test()
    {
		panel = new JPanel();
		status = new JLabel( "Button is NOT pressed" );
        button = new JButton("Press me");
        button.setActionCommand("press");
		button.addChangeListener(this);
		panel.setLayout( new BorderLayout() );
		panel.add(button, BorderLayout.CENTER);
		panel.add(status, BorderLayout.SOUTH);
        getContentPane().add(panel);
	    addWindowListener(
				new WindowAdapter()
				{
	            	public void windowClosing(WindowEvent e)
	            	{
	                System.exit(0);
	            	}
				}
		);
		setSize(200, 200);
		show();
    }
    public void stateChanged(ChangeEvent e)
 	{
		JButton b = (JButton)e.getSource();
		if(b.getModel().isPressed())
		{
			button.setText( "Leave me alone!" );
			status.setText( "Button is pressed" );
		}
		else
		{
			button.setText( "Press me" );
			status.setText( "Button is NOT pressed" );
		}
	}
	public static void main(String s[])
	{
		new Test();
	}
}