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Asked: 2026-05-10T13:43:13+00:00

Is there a better way to flash a window in Java than this: public

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Is there a better way to flash a window in Java than this:

public static void flashWindow(JFrame frame) throws InterruptedException {         int sleepTime = 50;         frame.setVisible(false);         Thread.sleep(sleepTime);         frame.setVisible(true);         Thread.sleep(sleepTime);         frame.setVisible(false);         Thread.sleep(sleepTime);         frame.setVisible(true);         Thread.sleep(sleepTime);         frame.setVisible(false);         Thread.sleep(sleepTime);         frame.setVisible(true); }

I know that this code is scary…But it works alright. (I should implement a loop…)

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1 Answer

  1. There are two common ways to do this: use JNI to set urgency hints on the taskbar’s window, and create a notification icon/message. I prefer the second way, since it’s cross-platform and less annoying.

    See documentation on the TrayIcon class, particularly the displayMessage() method.

    The following links may be of interest:

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