java实现音乐随机播放算法

import java.util.*;
public class RandomDemop
{
 static Random rd = new Random();//获取随机数的工具
 static List nList = new ArrayList();//保存随机数
 //获取随机数
 public static void getRandomNum()
 {
  for(int i=1;i<6;i  )
  {
   nList.add(new Integer(rd.nextInt(5)));
  }
 }
 //打印随机数
 private static void printElements(List list)
 {
  for(int i=0;i<list.size();i  )
  {
   System.out.println(list.get(i));
  }
 }
 public static void main(String [] arg)
 {
  getRandomNum();
  Collections.sort(nList);
  printElements(nList);
 }
}