java实现的简单点名小程序

今天还是想了一个有意思的小程序

//点名系统实现类

import java.util.Scanner;

public class RadomPrintName { private String[] classNum = null; public RadomPrintName() { // TODO Auto-generated constructor stub }

public String[] getclassNum() { return classNum; } public void setclassNum(String[] classNum) { this.classNum = classNum; }

public void radomPrintName(String[] classNum) throws InterruptedException { int num = classNum.length;//记录初始人数 Scanner in = new Scanner(System.in); System.out.println("我们班一共有："+num+"人"); System.out.println("准备好了吗？现在开始点名："); for (int i = 0; i < classNum.length; i++) {//循环点名，直到都点完为止 int randomnum = (int)(Math.random()*(num - 1)); System.out.println("第"+(i+1)+"次："); System.out.println(3); Thread.sleep(1000); System.out.println(2); Thread.sleep(1000); System.out.println(1); Thread.sleep(1000); System.out.println("恭喜你："+classNum[randomnum]+"，你被抽中了！"); System.out.println("是否继续：(y/n)"); if(in.nextLine().equals("y")) {//判断是否继续点名

//把被点过的人排除，用后一个人填补上 for (int j = randomnum; j < num - 1; j++) { classNum[j] = classNum[j+1]; } num--; } else { break; } } in.close(); }

}

//执行类

public class Demo {

public static void main(String[] args) throws InterruptedException { RadomPrintName rpn = new RadomPrintName(); String[] aClassNum = {"这里输入你要点名的名字"}; rpn.setclassNum(aClassNum);//设置数组的初始值 System.out.println("欢迎来到点名系统！"); rpn.radomPrintName(rpn.getclassNum());//调用点名方法，并且得到数组的值，传给方法 System.out.println("点名结束了！");

}

}