洗牌算法

import java.util.Random;


public class Masidf {
    public static void main(String arg[]){
        String[] musicUrl={"/music/1.mp3",
                "/music/2.mp3",
                "/music/3.mp3",
                "/music/4.mp3",
                "/music/5.mp3",
                "/music/6.mp3",
                "/music/7.mp3",
                "/music/8.mp3",
                "/music/9.mp3",
                "/music/10.mp3"};
        
        shuffle(musicUrl);
        
        for(String music:musicUrl){
            System.out.println(music);
        }
        
    }
    public static void shuffle(String[] musicUrl){
        int shuffle_key;
        String temp;
        Random rand = new Random();
        
        for(int i = 0; i < musicUrl.length; i++){
            shuffle_key = rand.nextInt(musicUrl.length-1);
            temp = musicUrl[i];
            musicUrl[i] = musicUrl[shuffle_key];
            musicUrl[shuffle_key] = temp;
        }
    }

}