Set Selected Radio Button Example

/*
	Set Selected Radio Button Example 
	This java example shows how to set a radio button selected using 
	Java AWT CheckboxGroup class.
*/
 
import java.applet.Applet;
import java.awt.Checkbox;
import java.awt.CheckboxGroup;
 
 
/*
<applet code="SetSelectedRadioButtonExample" width=200 height=200>
</applet>
*/
 
 
public class SetSelectedRadioButtonExample extends Applet{
 
	CheckboxGroup lngGrp = null;
 
	public void init(){
 
		//create group
		lngGrp = new CheckboxGroup();
 
		//create checkboxes and add to group
		Checkbox java = new Checkbox("Java", lngGrp, false);
		Checkbox cpp = new Checkbox("C++", lngGrp, false);
		Checkbox vb = new Checkbox("VB", lngGrp, false);
 
		//add radio buttons
		add(java);
		add(cpp);
		add(vb);
 
		/*
		 * To set a radio button selected by default, use
		 * void setSelectedCheckbox(Checkbox chk)
		 * method of Java AWT CheckboxGroup class.
		 */
 
		lngGrp.setSelectedCheckbox(cpp);
	}
}