// Written by:	Darren Gates & Ray Klefstad
// Date:	January 2000
// School:	U.C. Irvine

import java.awt.*;
import java.awt.event.*;
import java.applet.*;

public class RadioButtonsExample
    extends Applet
    implements ItemListener
{
    private TextField myTextField;
    private Checkbox redButton, greenButton, blueButton;
    private CheckboxGroup group;
    
    public void init()
    {
        myTextField = new TextField(20);
        group = new CheckboxGroup();
        
        Panel resultPanel = new Panel();
        Panel buttonPanel = new Panel();
        
        redButton = addButton("Red", false);
        greenButton = addButton("Green", false);
        blueButton = addButton("Blue", true);

        resultPanel.add(myTextField);
        add(resultPanel);
        add(buttonPanel);
    }
    
    public Checkbox addButton(String name, boolean selected)
    {
        Checkbox button 
            = new Checkbox(name, group, selected);
        add(button);
        button.addItemListener(this);
        return button;
    }
    
    public void itemStateChanged(ItemEvent e)
    {
        String result = "None";
        
        if (redButton.getState() == true)
            result = "Red";
        else if (greenButton.getState() == true)
            result = "Green";
        else
            result = "Blue";
                
        myTextField.setText("Your choice: " + result);
    }
}