Responding to button presses
// : c14:Button2.java
// Responding to button presses.
// <applet code=Button2 width=200 height=75></applet>
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTextField;
public class Button2 extends JApplet {
private JButton b1 = new JButton("Button 1"), b2 = new JButton("Button 2");
private JTextField txt = new JTextField(10);
class ButtonListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
String name = ((JButton) e.getSource()).getText();
txt.setText(name);
}
}
private ButtonListener bl = new ButtonListener();
public void init() {
b1.addActionListener(bl);
b2.addActionListener(bl);
Container cp = getContentPane();
cp.setLayout(new FlowLayout());
cp.add(b1);
cp.add(b2);
cp.add(txt);
}
public static void main(String[] args) {
run(new Button2(), 200, 75);
}
public static void run(JApplet applet, int width, int height) {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(applet);
frame.setSize(width, height);
applet.init();
applet.start();
frame.setVisible(true);
}
} ///:~
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