Java to play audio file through the commandline

Question

I would like to play a sound file using java through the command line.

so far I have succeded at listing the contents of a directory, but cannot play a wav file

code to list the content of a directory

Process p = Runtime.getRuntime().exec(new String[]{"/bin/bash","-c","ls"});
                        BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
                        String line=null;
                        while((line=input.readLine()) != null) {
                            System.out.println(line);
                        }
                        int exitVal = p.waitFor();
                        System.out.println("Exited with error code "+exitVal); 

code to play a wav file, this doesn't work

 Process p = Runtime.getRuntime().exec(new String[]{"/usr/bin/aplay","~/javafx/examples/PrayerTime/dist/police_s.wav"});
                            BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream()));
                            String line=null;
                            while((line=input.readLine()) != null) {
                                System.out.println(line);
                            }
                            int exitVal = p.waitFor();
                            System.out.println("Exited with error code "+exitVal); 

I get the following error

Exited with error code 1

Answer 1

Here is a slight variation of the code seen in the info. page for the javasound tag.

import java.net.URL;
import javax.sound.sampled.*;

public class LoopSound {

    public static void main(String[] args) throws Exception {
        URL url = new URL(
            "http://pscode.org/media/leftright.wav");
        Clip clip = AudioSystem.getClip();
        // getAudioInputStream() also accepts a File or InputStream
        AudioInputStream ais = AudioSystem.
            getAudioInputStream( url );
        clip.open(ais);
        clip.loop(Clip.LOOP_CONTINUOUSLY);
        Thread.sleep(5000);
    }
}

It works from the command line.