小小点名器

版权声明：所有博客本人原创，转载注明出处即可 https://blog.csdn.net/qq_42813491/article/details/88326961

代码

		Map<Integer, String> map = new HashMap();
		map.put(0, "叶红鱼");
		map.put(1, "莫山山");
		map.put(2, "余帘");
		map.put(3, "木柚");
		map.put(4, "夏天");
		Random random = new Random();
		int i = random.nextInt(5);
		System.out.println("点到的同学是:" + map.get(i));

效果图