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

public class Radio extends Applet {

    public void init() {

        CheckboxGroup c = new CheckboxGroup();

        Label label = new Label("Select one option             ");
        add(label);

        Checkbox red = new Checkbox("Red", c, false);
        add(red);
        Checkbox orange = new Checkbox("Orange", c, true);
        add(orange);
        Checkbox yellow = new Checkbox("Yellow", c, false);
        add(yellow);
    }

}