java随机猜数_java学习猜数字游戏（自动生成随机数）

package exercise;

import java.util.Random;

import java.util.Scanner;

public class my_guss_number {

public static void main(String[] args) {

Random ra &＃61; new Random();

int n &＃61; ra.nextInt(10);                //自动生成随机数

Boolean flag &＃61; true;

while (flag) {

System.out.println("please input number a:");

Scanner sc &＃61; new Scanner(System.in);

int a &＃61; sc.nextInt();

if (a > n) {

System.out.println("it is so big!");

}else if (a

System.out.println("it is so small!");

}else {

System.out.println("good luck!");

flag &＃61; false;               //防止产生死循环

}

}

}

}