How to select only one radio button?

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3

In the swing of Java, a user can select more than one radio button simultaneously, so this does not happen, one can do:

private void radio1ActionPerformed(java.awt.event.ActionEvent evt) {
    if (radio1.isSeleced()) {
        radio2.isSelected(false);
    }
}

But this is very impractical, imagine a situation that requires dozens of radio buttons, it would be too much work.

Is there any other way to do what I wish? I thought I’d use one foreach putting all radio buttons inside a vector, but I couldn’t abstract anything.

java swing
  • 2

    Aren’t you forgetting to group the JRadioButton in a ButtonGroup No? The standard behavior of a Radiobutton in a Group is to keep only one selected.

1 answer

9


The solution to this is the use of javax.swing.ButtonGroup which makes it possible to group the components into groups javax.swing.JRadioButton.

Example:

...
buttonGroup1 = new javax.swing.ButtonGroup();
jRadioButton1 = new javax.swing.JRadioButton();
jRadioButton2 = new javax.swing.JRadioButton();
jRadioButton3 = new javax.swing.JRadioButton();

buttonGroup1.add(jRadioButton1);
buttonGroup1.add(jRadioButton2);
buttonGroup1.add(jRadioButton3);
...

It can be used with any other component that inherits the class AbstractButton as documented here.

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