Display page for RadioButtons at www.BruceEckel.comRadioButtons.java








No Java 2 support for APPLET!!



//: c13:RadioButtons.java
// From 'Thinking in Java, 2nd ed.' by Bruce Eckel
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
// Using JRadioButtons.
// <applet code=RadioButtons
// width=200 height=100> </applet>
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import com.bruceeckel.swing.*;

public class RadioButtons extends JApplet {
JTextField t = new JTextField(15);
ButtonGroup g = new ButtonGroup();
JRadioButton
rb1 = new JRadioButton("one", false),
rb2 = new JRadioButton("two", false),
rb3 = new JRadioButton("three", false);
ActionListener al = new ActionListener() {
public void actionPerformed(ActionEvent e) {
t.setText("Radio button " +
((JRadioButton)e.getSource()).getText());
}
};
public void init() {
rb1.addActionListener(al);
rb2.addActionListener(al);
rb3.addActionListener(al);
g.add(rb1); g.add(rb2); g.add(rb3);
t.setEditable(false);
Container cp = getContentPane();
cp.setLayout(new FlowLayout());
cp.add(t);
cp.add(rb1);
cp.add(rb2);
cp.add(rb3);
}
public static void main(String[] args) {
Console.run(new RadioButtons(), 200, 100);
}
} ///:~