如何从一个字符串数组里随机取值

Question

如题所述

Answer 1

import java.util.Random;



public class Test {

/**
 * @param args
 */
public static void main(String[] args) {
// TODO Auto-generated method stub
String [] a=new String[]{"1","2","3","4"};
       System.out.println(a[new Random().nextInt(a.length)]);
}

}