import java.util.Scanner;

/**

* @author: 马士兵教育

* @create: 2019-08-18 16:42

*/

public class Administrator {

String loginName = "admin";

String password = "123";

public void introduce(){

System.out.println(loginName);

System.out.println(password);

}

public static void main(String[] args) {

Administrator admin = new Administrator();

System.out.println(admin.loginName);

System.out.println(admin.password);

admin.introduce();

//从控制台读取数据，需要Scanner对象

Scanner sc = new Scanner(System.in);

System.out.println("修改密码");

while(true){

System.out.println("请输入用户名称：");

String name = sc.nextLine();

System.out.println("请输入密码：");

String pwd = sc.nextLine();

if (name.equals(admin.loginName) && pwd.equals(admin.password)){

admin.loginName = sc.nextLine();

admin.password = sc.nextLine();

System.out.println("修改成功");

break;

}else{

System.out.println("用户名和密码不正确，请重新输入");

}

}

admin.introduce();

}

}