import java.util.Scanner;

public class yonghu {
    public static void main(String[] args) {

        //设置用户名和密码
        String rightusername="张三";
        int rightpassword=123456;

        //循环
        for ( int i = 0;i<3 ;i++) {
            //键盘输入用户名和密码
            Scanner a=new Scanner(System.in);
            System.out.println("请输入用户名");
            String username=a.next();
            System.out.println("请输入用户密码");
            int password=a.nextInt();
            if(username.equals(rightusername) && password==rightpassword)
            {
                //判断用户名和密码是否正确
                System.out.println("登录成功");
                break;
            }
             else {
                if (i == 2) {
                    System.out.println("你的账号已被锁定");
                } else {
                    System.out.println("用户名错确,还有" + (2 - i) + "次机会");
                }
            }
        }
    }
}