user defined exception

import java.io.*;

import java.util.*;

class Login extends Exception {

            Login(String Message) {

                        super(Message);

            }

}

class Authentication {

            public static void main(String args[]) throws IOException {

                        Scanner sc=new Scanner(System.in);

                        String password1="Program";

                        String password2;

                        System.out.print("Enter the password = ");

                        password2=sc.nextLine();

                        try {

                                    if(password1.equals(password2))

                                                System.out.println("Password Correct.");

                                    else {

                                                Login f1=new Login("Incorrect Password.");

                                                throw f1;

                                    }

                        } catch(Login e) {

                                    System.out.print(e);

                        }

            }

}