import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.DataLine;
public class Main {
public static void main(String[] argv) throws Exception {
DataLine.Info info = null;
Clip clip = (Clip) AudioSystem.getLine(info);
double durationInSecs = clip.getBufferSize()
/ (clip.getFormat().getFrameSize() * clip.getFormat().getFrameRate());
}
}