JavaBeans - An Introduction to Network Programming with Java - page 297

calling the bean's setImageName / setDelay method in response to the <Return> key
being pressed at the end of entry into one of the text fi elds.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import animBeans.AnimBean2;
public class AnimBeanApp2 extends JFrame
implements ActionListener
{
private AnimBean2 sequence;
private JPanel speedControl, imageControl;
private JLabel delayPrompt, imagePrompt;
private JTextField delay, imageName;
public static void main(String[] args)
{
AnimBeanApp2 frame = new AnimBeanApp2();
frame.setSize(150,250);
frame.setVisible(true);
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
}
public AnimBeanApp2()
{
sequence = new AnimBean2();
speedControl = new JPanel();
delayPrompt = new JLabel("Delay(ms): ");
delay = new JTextField(4);
imageControl = new JPanel();
imagePrompt = new JLabel("Image: ");
imageName = new JTextField(8);
add(sequence, BorderLayout.NORTH);
speedControl.add(delayPrompt);
speedControl.add(delay);
delay.addActionListener(this);
add(speedControl, BorderLayout.CENTER);
imageControl.add(imagePrompt);
imageControl.add(imageName);
imageName.addActionListener(this);
add(imageControl, BorderLayout.SOUTH);
}
public void actionPerformed(ActionEvent event)
{