If we consider i have a ButtonGroup component, which have two JRadioButton like this :
JRadioButton bButton = new JRadioButton("Boy");
JRadioButton gButton = new JRadioButton("Girl");
ButtonGroup group = new ButtonGroup();
bButton.setSelected(true);
group.add(bButton);
group.add(gButton);
How can I get all the JRadioButton components from the ButtonGroup ordered by the default order so I can set the first JRadioButton Selected?
Finally i found the solution, i think there are a way to return
Enumeration<AbstractButton>, so use it to return all theJRadioButtonof thisButtonGroup