Play WAV files with Java

The following simple application demonstrates how to play back a WAV audio file with Java APIs.
The key step is to specify the correct parameters and create an AudioFormat object.

package com.stackoverflow.AudoPlayback;

import java.io.BufferedInputStream;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioFormat.Encoding;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.SourceDataLine;

public class AudioPlayback {
    private SourceDataLine dataLine;
    private AudioFormat audioFormat;
    public AudioPlayback() throws LineUnavailableException {
        audioFormat = new AudioFormat(Encoding.PCM_UNSIGNED,    // Encoding 
                                      11025,                    // Sample Rate 
                                      8,                        // Sample Size in Bits
                                      1,                        // Channels
                                      1,                        // Frame Size
                                      8000,                     // Frame Rate
                                      false);                   // Little Endian

        DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat, 1000);
        dataLine = (SourceDataLine) AudioSystem.getLine(info);
    }

    public void start() throws LineUnavailableException {
        dataLine.open(audioFormat);
        dataLine.start();
    }

    public void stop() {
        dataLine.stop();
        dataLine.close();
    }

    public void play(byte[] buffer, int offset, int length) {
        dataLine.write(buffer, offset, length);
        dataLine.drain();
    }

    public static void main(String[] args) {

        try {            
            File audioFile = new File("audio.wav");
            DataInputStream input = new DataInputStream(new BufferedInputStream(
                                                        new FileInputStream(audioFile)));
            AudioPlayback playBack = new AudioPlayback();
            byte[] data = new byte[64 * 1024];  // 65 KB buffer
            int length = 0;
            int playbackLength = 0;
            long totalLength = audioFile.length();
            
            playBack.start();
            do {
                length = input.read(data);
                playBack.play(data, 0, length);
                playbackLength += length;
            } while (playbackLength < totalLength);
            playBack.stop();
            input.close();

        } catch (LineUnavailableException e) {
            e.printStackTrace();
        } catch (FileNotFoundException e1) {
            e1.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}