MP3

To play an mp3 we need to use code created by others. When people want to share code, they often compile it and compress it as a library file (known as JAR file). The JAR file that you need to use is here. (Open and SAVE IT TO YOUR FOLDER THAT YOU ARE WORKING WITH) We dont include it as we include as we would just a class (because its compiled). In BLUEJ - click preferences - Add library and find that jar file.

Have these imports:

import java.io.*;
import javazoom.jl.player.Player;

And in your code add the methods below:

	Player player;
    public void stopMP3() { if (player != null) player.close(); }

    // play the MP3 file to the sound card
    public void playMP3(String filename) {
        try {
           InputStream is = getClass().getClassLoader().getResourceAsStream(filename); 
            BufferedInputStream bis = new BufferedInputStream(is);
            player = new Player(bis);
        }
        catch (Exception e) {
            System.out.println("Problem playing file " + filename);
            System.out.println(e);
        }

        // run in new thread to play in background
        new Thread() {
            public void run() {
                try { player.play(); }
                catch (Exception e) { System.out.println(e); }
            }
        }.start();




    }  

}

To start playing a song titled songname.mp3 (which is in your working folder) you would say:

playMP3("songname.mp3");

to stop it

stopMP3();

The code altogether is below:

import java.io.BufferedInputStream;
import java.io.FileInputStream;

import javazoom.jl.player.Player;


public class MP3 {
     String filename;
     Player player; 

    

    public void stopMP3() { if (player != null) player.close(); }

    // play the MP3 file to the sound card
    public void playMP3(String filename) {
        try {
            FileInputStream fis     = new FileInputStream(filename);
            BufferedInputStream bis = new BufferedInputStream(fis);
            player = new Player(bis);
        }
        catch (Exception e) {
            System.out.println("Problem playing file " + filename);
            System.out.println(e);
        }

        // run in new thread to play in background
        new Thread() {
            public void run() {
                try { player.play(); }
                catch (Exception e) { System.out.println(e); }
            }
        }.start();




    }  

}

String filename="resources/smb-overworld.mp3";
			URL source = getClass().getResource(filename);
			URLConnection servletConnection = source.openConnection();
			InputStream in = servletConnection.getInputStream();
            player = new Player(in);