java - How to add a color indicator (LED-lookalike) to a JFrame? -

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i want add color-indicator jframe. should turned red when click button , if not click button should green. how should implement this?

jlabel lblled = new jlabel("•"); lblled.setforeground(color.green);

add changelistener jbutton , in statechanged() method add this: 

if (buttonispressed) {     lblled.setforeground(color.red); } else {     lblled.setforeground(color.green); }

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