Play button remain pressed until music stops playing
I am developing a simple sound/music player with play, pause, stop and next buttons.  When I click on Play button, the play button remain pressed and all other buttons cannot be clicked until the sound stops playing.  How can I enable the play button and all other buttons back immediately the music starts playing?  I want to be able to stop, pause, and even go to the next sound clip even when one is currently playing.  I used the following code but it did not work. I'd be glad if you can provide some help.  Here is the code:
        jButton1.setEnabled(true);
        jButton2.setEnabled(false);
        jButton3.setEnabled(false);
        jButton4.setEnabled(true);
        jButton4.setEnabled(true);
Play button remain pressed until music stops playing
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I am developing a simple sound/music player with play, pause, stop and next buttons.  When I click on Play button, the play button remain pressed and all other buttons cannot be clicked until the sound stops playing.  How can I enable the play button and all other buttons back immediately the music starts playing?  I want to be able to stop, pause, and even go to the next sound clip even when one is currently playing.  I used the following code but it did not work. I'd be glad if you can provide some help.  Here is the code:
        jButton1.setEnabled(true);
        jButton2.setEnabled(false);
        jButton3.setEnabled(false);
        jButton4.setEnabled(true);
        jButton4.setEnabled(true);