// ButtonTest.java // Creating JButtons. import java.awt.*; import java.awt.event.*; import javax.swing.*; public class ButtonTest extends JFrame { private JButton plainButton, fancyButton; public ButtonTest() { super( "Testing Buttons" ); Container c = getContentPane(); c.setLayout( new FlowLayout() ); // create buttons plainButton = new JButton( "Plain Button" ); c.add( plainButton ); Icon bug1 = new ImageIcon( "bug1.gif" ); Icon bug2 = new ImageIcon( "bug2.gif" ); fancyButton = new JButton( "Fancy Button", bug1 ); fancyButton.setRolloverIcon( bug2 ); c.add( fancyButton ); // create an instance of inner class ButtonHandler // to use for button event handling ButtonHandler handler = new ButtonHandler(); fancyButton.addActionListener( handler ); plainButton.addActionListener( handler ); setSize( 275, 100 ); show(); } public static void main( String args[] ) { ButtonTest app = new ButtonTest(); app.addWindowListener( new WindowAdapter() { public void windowClosing( WindowEvent e ) { System.exit( 0 ); } } ); } // inner class for button event handling private class ButtonHandler implements ActionListener { public void actionPerformed( ActionEvent e ) { JOptionPane.showMessageDialog( null, "You pressed: " + e.getActionCommand() ); } } }
Maintained by John Loomis, last updated 1 June 2000