package course;

import java.util.Scanner;

public class CheckLogin {

    public static void main(String[] args) {
        Scanner scan=new Scanner(System.in);
        System.out.println("请输入登录用户名：");
        String username=scan.nextLine();
        System.out.println("请输入登录密码：");
        String password=scan.nextLine();
        if(!username.equals("mr")){
            System.out.println("用户名非法");
        }else if(!password.equals("mrsoft")){
            System.out.println("密码错误");
        }else{
            System.out.println("恭喜你，通过登录验证!");
        }
               

    }

}

条件语句模拟验证登录