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java随机点名源码(编写一个随机点名程序JAVA)

hacker2022-10-05 03:10:15热点问题103
本文目录一览:1、Java求助,Java用Scanner以及遍历数组还有for循环写一个随机点名的代码?

本文目录一览:

Java求助 ,Java用Scanner以及遍历数组还有for循环写一个随机点名的代码?

import java.io.BufferedInputStream;import java.util.Scanner; public class test1 { public static void main(String[] args) { Scanner cin = new Scanner(new BufferedInputStream(System.in)); int n = cin.nextInt(); // 输入n个数 int[] a = new int[n]; for (int i = 0; i n; ++i) { a[i] = cin.nextInt(); } cin.close(); for (int i = a.length - 1; i = 0; --i) { // 逆序输出 System.out.print(a[i] + " "); } }}

Java随机抽取人名完整代码是什么?

public class test {

public static void main(String[] args) {

//定义人名数组

String [] name = {"张三","李四","王五","八神庵","不知火舞","大蛇","景天","唐雪见","李逍遥","赵灵儿"};

//随机生成数组下标、

int num = (int)(Math.random() * 1000);

//对生成的随机数进行判断,如果小于数组下标,就跳出循环

while (numname.length-1) {

if (num=name.length-1) {

break;

}

num = (int)(Math.random() * 1000);

}

//将数组下标设置成随机数,就可以实现人名的随机抽取

System.out.println(“被抽到的同学是:”+name[num]);

}

}

javaweb写个随机点名的代码

//首先我们可以先把名字搞成一个数组,或者List都是可以的。

    String[] arr = {"张三","李四","王五","xxx"....};

    String random = arr[new Random().nextInt(arr.size())];

    System.out.println("随机名字为:"+random);

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  • 辙弃雨铃(2022-10-05 04:03:36)回复取消回复

    Int(arr.size())];    System.out.println("随机名字为:"+random);

  • 慵吋寻妄(2022-10-05 11:58:57)回复取消回复

    args) { //定义人名数组 String [] name = {"张三","李四","王五","八神庵","不知火舞","大蛇","景天","唐雪见","李逍遥","赵灵儿"};//随机生成数组