Unselecting RadioButtons in Java Swing

Question

When displaying a group of JRadioButtons, initially none of them is selected (unless you programmatically enforce that). I would like to be able to put buttons back into tha

Answer 1

You can use a click counter:

private ButtonGroup radioGroup = new javax.swing.ButtonGroup();
private JRadioButton jRadioBtn1 = new javax.swing.JRadioButton();
private int clickCount = 0;

private void jRadioBtn1Clicked(java.awt.event.MouseEvent evt) {                                             
    // Remove selection on a second click
    if (jRadioBtn1.isSelected()) {

        if (++clickCount % 2 == 0) {

            radioGroup.clearSelection();
        }
    }
}   

Answer 2

In my case I use Jgoodies project to bind GUI components to Java model. The RadioButton component is bound to a field

class Model {
  private SomeJavaEnum field; // + getter, setter
}

In such case ButtonGroup.clearSelection doesn't work since the old value still retains in the model. Straightforward solution was to simply setField(null).

Answer 3

Or you can use Darryl's Select Button Group which doesn't require you to use an "invisible button".

Answer 4

When you want to deselect, select invisible. For that you add a third invisible button to the button group.