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Asked: 2026-05-15T23:04:07+00:00

How can I know when the key typed change my text? Or if the

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How can I know when the key typed change my text? Or if the key is a char?

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  1. Editorial Team

    The interface KeyListener contain three methods:

    void keyTyped(KeyEvent)
    void keyPressed(KeyEvent)
    void keyReleased(KeyEvent)

    So, if you get the char in the KeyEvent object like:

    if ("a".equals(KeyEvent.getKeyChar()))
    System.out.println("It's a letter")
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