i want to make a volume controller (a java application) that could control the volume of the audio output of my another application(again in java) that plays and transmit audio files. the only thing i want is that i want to play audio files stored on my disk using a java application(i have it) but i can't control the volume till now, and i want to add two buttons in it to control the volume, one for lowering and one for increasing the sound.
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