Java Sound Code

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.sound.sampled.*;

public class audioapp
                        extends JFrame{

  boolean stopaudioCapture = false;
  ByteArrayOutputStream
                 byteOutputStream;
  AudioFormat adFormat;
  TargetDataLine targetDataLine;
  AudioInputStream InputStream;
  SourceDataLine sourceLine;

  public static void main(String args[]){
    new audioapp();
  }

  public audioapp(){
    final JButton capture =
                new JButton("Capture");
    final JButton stop =
                   new JButton("Stop");
    final JButton play =
               new JButton("Playback");

    capture.setEnabled(true);
    stop.setEnabled(false);
    play.setEnabled(false);

    capture.addActionListener(
      new ActionListener(){
        public void actionPerformed(
                        ActionEvent e){
          capture.setEnabled(false);
          stop.setEnabled(true);
          play.setEnabled(false);
          captureAudio();
        }
      }
    );
    getContentPane().add(capture);

    stop.addActionListener(
      new ActionListener(){
        public void actionPerformed(
                        ActionEvent e){
          capture.setEnabled(true);
          stop.setEnabled(false);
          play.setEnabled(true);
          stopaudioCapture = true;
        }
      }
    );
    getContentPane().add(stop);

    play.addActionListener(
      new ActionListener(){
        public void actionPerformed(
                        ActionEvent e){
                playAudio();
        }
      }
    );
    getContentPane().add(play);

    getContentPane().setLayout(
                     new FlowLayout());
    setTitle("Capture/Playback Demo");
    setDefaultCloseOperation(
                        EXIT_ON_CLOSE);
    setSize(250,70);
    setVisible(true);
  }

  private void captureAudio(){
    try{
      adFormat = getAudioFormat();
      DataLine.Info dataLineInfo =
                new DataLine.Info(
                  TargetDataLine.class,
                   adFormat);
      targetDataLine = (TargetDataLine)
                   AudioSystem.getLine(
                         dataLineInfo);
      targetDataLine.open(adFormat);
      targetDataLine.start();

      Thread captureThread =
                new Thread(
                  new CaptureThread());
      captureThread.start();
    } catch (Exception e) {
      System.out.println(e);
      System.exit(0);
    }
  }

  private void playAudio() {
    try{
      byte audioData[] =
                 byteOutputStream.
                         toByteArray();
      InputStream byteInputStream
            = new ByteArrayInputStream(
                            audioData);
      AudioFormat adFormat =
                      getAudioFormat();
      InputStream =
        new AudioInputStream(
          byteInputStream,
          adFormat,
          audioData.length/adFormat.
                       getFrameSize());
      DataLine.Info dataLineInfo =
                new DataLine.Info(
                  SourceDataLine.class,
                          adFormat);
      sourceLine = (SourceDataLine)
                   AudioSystem.getLine(
                         dataLineInfo);
      sourceLine.open(adFormat);
      sourceLine.start();

      Thread playThread =
          new Thread(new PlayThread());
      playThread.start();
    } catch (Exception e) {
      System.out.println(e);
      System.exit(0);
    }
  }

  private AudioFormat getAudioFormat(){
    float sampleRate = 8000.0F;
    int sampleInbits = 16;
    int channels = 1;
    boolean signed = true;
    boolean bigEndian = false;
    return new AudioFormat(
                      sampleRate,
                      sampleInbits,
                      channels,
                      signed,
                      bigEndian);
  }

class CaptureThread extends Thread{
  byte tempBuffer[] = new byte[10000];
  public void run(){
    byteOutputStream =
           new ByteArrayOutputStream();
    stopaudioCapture = false;
    try{
              while(!stopaudioCapture){
                int cnt = targetDataLine.read(
                    tempBuffer,
                    0,
                    tempBuffer.length);
        if(cnt > 0){
                  byteOutputStream.write(
                   tempBuffer, 0, cnt);
        }
      }
      byteOutputStream.close();
    }catch (Exception e) {
      System.out.println(e);
      System.exit(0);
    }
  }
}

class PlayThread extends Thread{
  byte tempBuffer[] = new byte[10000];

  public void run(){
    try{
      int cnt;
      while((cnt = InputStream.
        read(tempBuffer, 0,
            tempBuffer.length)) != -1){
        if(cnt > 0){
          sourceLine.write(
                   tempBuffer, 0, cnt);
        }
      }
     sourceLine.drain();
      sourceLine.close();
    }catch (Exception e) {
      System.out.println(e);
      System.exit(0);
    }
  }
}
}