java基础:经典案列~随机数语句~键盘输入语句~ if else语句~欢迎大家参考!

猜数字:

在这里插入代码片import java.util.Random; import java.util.Scanner; public class Caishuzi2{ public static void main(String[] args){ Random r = new Random(); int a = r.nextInt(100)+1; while(true){ Scanner sc = new Scanner(System.in); System.out.println("请输入一个你要猜的数字"); int c = sc.nextInt(); if(c>a){ System.out.println("你输入的"+c+"大了"); }else if (c<a){ System.out.println("你输入的"+c+"小了"); }else{ System.out.println("恭喜你答对了!"); break; } } } }