public class UserLogin {
public static void main(String[] args) {
//1.定义两个字符串作为已知用户的姓名与密码
String Username = "admin";
String PassWord = "123456";
//使用循环判断
for (int i = 0; i <= 2; i++) {
//2.使用Scanner类来获取用户输入的用户名与密码
Scanner sc = new Scanner(System.in);
System.out.print("请输入用户名:");
String name = sc.nextLine();
System.out.print("请输入密码:");
String password = sc.nextLine();
if (name.equals(Username) && password.equals(PassWord)) {
System.out.println("登陆成功");
return;
} else {
if (2 - i == 0) {
System.out.println("您的次数已用完");
} else
System.out.println("用户名或密码错误,你还有" + (2 - i) + "次机会");
}
}
}
}