java随机点名源代码,java随机点名程序代码

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]);

}

}

相关问答

Q1: 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);

Q2: java点名系统源代码

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

import java.util.Scanner;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JTextField;

public class test {

static String[] arr;

static boolean flag=true;

static ListString a;

static JTextField jtf;

public static void main(String[] args) {

// TODO Auto-generated method stub

JFrame frame=new JFrame();

frame.setLayout(new GridLayout(1,2));

JButton button = new JButton("抽奖");

jtf = new JTextField();

frame.add(jtf);

frame.add(button);

a = new ArrayListString();

arr = new String[]{"张三","李四","王五"};

button.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e) {

int i=0;

fond:

while(true){

String str = arr[(int)(Math.random()*arr.length)];

for(String b:a){

if(b.equals(str)){

if(i=arr.length){

jtf.setText("没有人了");

break fond;

}

continue fond;

}

i++;

}

a.add(str);

jtf.setText(str);

break;

}

}

});

frame.setSize(500, 500);

frame.setLocation(500, 500);

frame.setVisible(true);

}

}

Q3: 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] + " "); } }}

Q4: java 如何弄个简单的随机点名,不用名字,直接数字就可以

import java.util.Random;

public class RandomD {

public static void main(String[] args) {

System.out.println("随机点名开始!我将要在5个同学中点名!");

String[] student={"张三","李四","王五","麻子","小猪"};

Random rand=new Random();

System.out.println("点名开始:");

try {

Thread.sleep(1000);

} catch (InterruptedException e) {

e.printStackTrace();

}

System.out.println(student[Math.abs(rand.nextInt()%5)]);

}

}