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项目卡4
package day14;
/**
* @author xpl
* @create 2023-02-22 14:47
*/
public interface UserService {
public abstract void login();
}
class User implements UserService {
String account;
String password;
@Override
public void login() {
if(account.equals("admin") && password.equals("123"))
System.out.println("登陆成功");
else
System.out.println("登陆失败");
}
}
class Test {
public static void main(String[] args) {
User user = new User();
user.account = "admin";
user.password = "123";
user.login();
}
}