java实现获取list中随机item
作者:
stepyu | 来源:发表于
2016-06-01 19:37 被阅读3171次package com.yj.test.javaBases.testRandom;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
public class RandomListItem {
public static Random random = new Random();
public static void main(String[] args) {
List<String> list = new ArrayList<String>();
int i = 0;
while(i<3){
list.add(i+"");
i++;
}
for(String item: list){
System.out.println(item);
}
System.out.println("----");
int j = 0;
while(j<12){
j++;
System.out.println(list.get(random.nextInt(list.size())));
}
}
}
本文标题:java实现获取list中随机item
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