Java Radio Buttons using applet

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import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
/*
  <applet code="JRadioButtonDemo"width=300 height=50>
  </applet>
*/
public class JRadioButtonDemo extends JApplet implements ActionListener
{
    JTextField tf;
    public void init()
    {
        Container contentPane=getContentPane();
        contentPane.setLayout(new FlowLayout());
        JRadioButton b1=new JRadioButton("C");
        b1.addActionListener(this);
        contentPane.add(b1);
        
        JRadioButton b2=new JRadioButton("Java");
        b2.addActionListener(this);
        contentPane.add(b2);
        
        JRadioButton b3=new JRadioButton("C++");
        b3.addActionListener(this);
        contentPane.add(b3);
        
        JRadioButton b4=new JRadioButton("HTML");
        b4.addActionListener(this);
        contentPane.add(b4);
        
        JRadioButton b5=new JRadioButton("PHP");
        b5.addActionListener(this);
        contentPane.add(b5);
        
        ButtonGroup bg=new ButtonGroup();
        bg.add(b1);
        bg.add(b2);
        bg.add(b3);
        bg.add(b4);
        bg.add(b5);
        
        tf=new JTextField(5);
        contentPane.add(tf);
    }
    public void actionPerformed(ActionEvent ae)
    {
        tf.setText(ae.getActionCommand());
    }
}

Posted in: Java , Java Applet