FloatControl.Type.VOLUME code example
Example: how to control clip volume java
public static void play(Clip clip) {
if (Settings.getSettings().isVolumeOn()) {
FloatControl volume = (FloatControl) clip.getControl(FloatControl.Type.MASTER_GAIN);
volume.setValue(-1 * Settings.getSettings().getVolume());
clip.start();
}
}