猜数字游戏(笔试题目)

package com.sun.demo;

import java.util.Random;
import java.util.Scanner;

public class Test01 {

	public static void main(String[] args) {
		Random r = new Random();
		int ri = r.nextInt(100); //随机产生的数值
		Scanner sc = new Scanner(System.in);
		int num = 0;  //输入的数值
		int count = 0;//猜的次数
		while (true) {
			count++;
			System.out.println("请猜数：");
			num = sc.nextInt();
			if (num == ri) {
				System.out.println("恭喜你！已经猜中！共用了" + count + "次数 ");
				break;
			} else if (num < ri) {
				System.out.println("对不起，数值小了!");
			} else {
				System.out.println("对不起，数值大了!");
			}
			//如果输入9999，则显示产生的数值
			if (num == 9999) {
				System.out.println("随机数是:" + ri);
			}
		}
	}

}