// Add icons to a button. 
  
import java.awt.*;  
import java.awt.event.*;  
import javax.swing.*;  
  
class ButtonIcons implements ActionListener {  
  
  JLabel jlab;   
  JButton jbtnFirst; 
  JButton jbtnSecond; 
  
  ButtonIcons() {  
    ImageIcon myIcon = new ImageIcon("myIcon.gif"); 
    ImageIcon myDisIcon = new ImageIcon("myDisIcon.gif"); 
    ImageIcon myROIcon = new ImageIcon("myROIcon.gif"); 
    ImageIcon myPIcon = new ImageIcon("myPIcon.gif"); 
  
    // Create a new JFrame container.  
    JFrame jfrm = new JFrame("Use Button Icons");  
  
    // Specify FlowLayout for the layout manager.  
    jfrm.getContentPane().setLayout(new FlowLayout());  
  
    // Give the frame an initial size.  
    jfrm.setSize(220, 100);  
  
    // Terminate the program when the user closes the application.  
    jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  
  
    // Create a text-based label.  
    jlab = new JLabel("Press a button.");  
  
    // Make two buttons.  
    jbtnFirst = new JButton("First", myIcon);  
    jbtnSecond = new JButton("Second", myIcon);  
 
    // Set rollover icons. 
    jbtnFirst.setRolloverIcon(myROIcon); 
    jbtnSecond.setRolloverIcon(myROIcon); 
  
    // Set pressed icons. 
    jbtnFirst.setPressedIcon(myPIcon); 
    jbtnSecond.setPressedIcon(myPIcon); 
 
    // Set disabled icons. 
    jbtnFirst.setDisabledIcon(myDisIcon); 
    jbtnSecond.setDisabledIcon(myDisIcon); 
 
    // Add action listeners.  
    jbtnFirst.addActionListener(this); 
    jbtnSecond.addActionListener(this); 
  
    // Add the buttons to the content pane.  
    jfrm.getContentPane().add(jbtnFirst);   
    jfrm.getContentPane().add(jbtnSecond);   
  
    // Add the label to the frame.  
    jfrm.getContentPane().add(jlab);  
  
    // Display the frame.  
    jfrm.setVisible(true);  
  }  
  
  // Handle button events.  
  public void actionPerformed(ActionEvent ae) {  
     
    if(ae.getActionCommand().equals("First")) { 
      jlab.setText("First button was pressed.");  
      if(jbtnSecond.isEnabled()) { 
        jlab.setText("Second button is disabled.");  
        jbtnSecond.setEnabled(false); 
      } 
      else { 
        jlab.setText("Second button is enabled.");  
        jbtnSecond.setEnabled(true); 
      } 
    } else  
      jlab.setText("Second button was pressed. ");  
  }  
  
  public static void main(String args[]) {  
    // Create the frame on the event dispatching thread.  
    SwingUtilities.invokeLater(new Runnable() {  
      public void run() {  
        new ButtonIcons();  
      }  
    });  
  }  
}