ButtonGroup.setSelected(ButtonModel m, boolean b) has the following syntax.
public void setSelected(ButtonModel m, boolean b)
In the following code shows how to use ButtonGroup.setSelected(ButtonModel m, boolean b) method.
// w w w .ja v a 2 s . c o m import javax.swing.ButtonGroup; import javax.swing.ButtonModel; import javax.swing.JRadioButton; public class Main { public static void main(String[] argv) throws Exception { JRadioButton radioButton = new JRadioButton(); ButtonGroup group = new ButtonGroup(); ButtonModel model = radioButton.getModel(); group.setSelected(model, true); } }