创建类
LoginDemo3
这里取反
!(n%3==0)
package com.imooc.operator;import java.util.Scanner;public class LoginDemo3 { public static void main(String[] args) { // TODO Auto-generated method stub System.out.println("请输入一个整数"); Scanner sc=new Scanner(System.in); int n=sc.nextInt(); //能否被3整除 就是对3取余 if(!(n%3==0)){ System.out.println(n+"不能被3整数!"); }else{ System.out.println(n+"能被3整数!"); } }}
4-3