[java] accessing a variable from another class

Java inbuilt libraries support only AIFC, AIFF, AU, SND and WAVE formats. Here I only discussed playing an audio file using Clip only and see the various methods of a clip.

  1. Create a main class PlayAudio.java.
  2. Create helper class Audio.java.

PlayAudio.java

import java.io.IOException;
import java.util.Scanner;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.UnsupportedAudioFileException;
public class PlayAudio {
public static void main(String[] args) throws 
UnsupportedAudioFileException, IOException, 
LineUnavailableException {

    PlayMp3 playMp3;
    playMp3=new PlayMp3();


    Scanner sc = new Scanner(System.in);

    while (true) {
        System.out.println("Enter Choice :-");
        System.out.println("1. Play");
        System.out.println("2. pause");
        System.out.println("3. resume");
        System.out.println("4. restart");
        System.out.println("5. stop");

        System.out.println(PlayMp3.status);
        System.out.println(":::- ");
        int c = sc.nextInt();

        if (c ==5){

            playMp3.stop();
            break;
        }

        switch (c) {
            case 1:
                playMp3.play();
                break;
            case 2:
                playMp3.pause();
                break;
            case 3:
                playMp3.resume();
                break;
            case 4:
                playMp3.restart();
                break;
            case 5:
                playMp3.stop();
            default:
                System.out.println("Please Enter Valid Option :-");

        }
    }
    sc.close();
   }
}

Audio.java

import javax.sound.sampled.*;
import java.io.File;
import java.io.IOException;

public class Audio {

private String filePath="mp.snd";
public static String status="paused";
private Long currentFrame=0L;
private Clip clip;

private AudioInputStream audioInputStream;

public Audio() throws UnsupportedAudioFileException, IOException, LineUnavailableException {

    audioInputStream = AudioSystem.getAudioInputStream(new File(filePath));

    clip = AudioSystem.getClip();

    clip.open(audioInputStream);

}


public void play(){
    clip.start();
    status = "playing";
}

public void pause(){

    if (status.equals("paused")) {
        System.out.println("audio is already paused");
        return;
    }
    currentFrame = clip.getMicrosecondPosition();
    clip.stop();
    status = "paused";
}
public void resume() throws UnsupportedAudioFileException, IOException, LineUnavailableException {
    if (status.equals("play"))
    {
        System.out.println("Audio is already being playing");
        return;
    }
    clip.close();

    //starts again and goes to currentFrame
    resetAudioStream();
    clip.setMicrosecondPosition(currentFrame);
    play();
    status="playing";

}

public void restart() throws UnsupportedAudioFileException, IOException, LineUnavailableException {
    clip.stop();
    clip.close();
    resetAudioStream();
    currentFrame = 0L;
    clip.setMicrosecondPosition(0);
    play();
    status="Playing from start";
}

public void stop(){

    currentFrame = 0L;
    clip.stop();
    clip.close();
    status="stopped";
}

private void resetAudioStream() throws IOException, UnsupportedAudioFileException, LineUnavailableException {

    audioInputStream = AudioSystem.getAudioInputStream(new File(filePath).getAbsoluteFile());
    clip.open(audioInputStream);

   }

}