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I want to add a color-indicator to my JFrame. It should be turned to be red when I click a button and if I do not click a button it should be green. How should I implement this?

LionC
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RSF
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  • in JFrame's content, you can add a JLabel, do you want to add at the top of the JFrame, at decoration ? - near the minimize and maximize buttons? –  Apr 25 '13 at 12:57
  • do you want it in the header? What do you want as an indicator? be more specific – Oliver Watkins Apr 25 '13 at 13:04
  • I want it to be in any place in the jframe and very small it can be circular. – RSF Apr 25 '13 at 13:14

1 Answers1

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JLabel lblLed = new JLabel("•");
lblLed.setForeground(Color.Green);

Add an ChangeListener to your JButton and in the StateChanged() method add this: 

if (buttonIsPressed) {
    lblLed.setForeground(Color.Red);
} else {
    lblLed.setForeground(Color.Green);
}
DeadlyJesus
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