Hi, I have a problem with this code (below), I enter the username and password correctly then I want to input an integer either 1 or 2 but if I enter wrongly, e.g. 3, it will print out "Unsuccessfully login due to invalid username or password". How can I edit this code to make it print out "Invalid input" if I enter 3. Hope to receive help ASAP.
Thanks in advance :)

import java.util.Scanner;

public class Main {

static Scanner scan = new Scanner(System.in);

public static String username;
public static String input;
public static int userInput;


public static void main(String[] args) {

System.out.println("Enter your username and password in the following format (e.g. username, password [with the comma]):");
username = scan.nextLine();
if (username.equalsIgnoreCase("Norman Lim, a123") || (username.equalsIgnoreCase("Silvia Chong, b456") || (username.equalsIgnoreCase("Gordon Tan, c789")))){
System.out.println();
System.out.println("You have successfully login");
System.out.println();
System.out.println("Enter '1' to view movie listing by Hall and '2' by Time: ");
userInput = scan.nextInt();
}else
System.out.println();
System.out.println("Unsuccessfully login due to invalid username or password");
System.out.println();

if (userInput == 1){
System.out.println("====================================================================================");
System.out.println(" ~~~~~~~~~~~~~~~~~~~~~ Hall 1 ~~~~~~~~~~~~~~~~~~~~~");
System.out.println("Movid ID: 1 Title: Inception Time: 4pm Cost: $10.00");
System.out.println("Movie ID: 2 Title: Twelve Time: 6pm Cost: $9.00");
System.out.println("Movie ID: 3 Title: The Sorcerer's Apprentice Time: 8pm Cost: $9.00");
System.out.println();

// for movie showing in Hall 2
System.out.println(" ~~~~~~~~~~~~~~~~~~~~~ Hall 2 ~~~~~~~~~~~~~~~~~~~~~");
System.out.println("Movie ID: 4 Title: Toy Story 3 Time: 3pm Cost: $7.50");
System.out.println("Movie ID: 5 Title: Toy Story 3 Time: 5pm Cost: $7.50");
System.out.println("Movie ID: 6 Title: Twelve Time: 7pm Cost: $9.50");
System.out.println("Movie ID: 7 Title: Predator Time: 9pm Cost: $9.50");
System.out.println();

// for movie showing in Hall 3
System.out.println(" ~~~~~~~~~~~~~~~~~~~~~ Hall 3 ~~~~~~~~~~~~~~~~~~~~~");
System.out.println("Movie ID: 8 Title: Knight and Day Time: 3pm Cost: $7.50");
System.out.println("Movie ID: 9 Title: The Twilight Saga: Eclipse Time: 5pm Cost: $8.50");
System.out.println("Movie ID: 10 Title: The Twilight Saga: Eclipse Time: 7pm Cost: $10.50");
System.out.println("Movie ID: 11 Title: Predator Time: 9pm Cost: $9.50");
System.out.println("====================================================================================");
System.out.println();
}

else if (userInput ==2){
//for movie showing at 3pm
System.out.println("====================================================================================");
System.out.println(" ~~~~~~~~~~~~~~~ Movie showing at 3pm ~~~~~~~~~~~~~~~");
System.out.println("Hall 2: Movie ID: 4 Movie: Toy Story 3 Cost: $7.50");
System.out.println("Hall 3: Movie ID: 8 Movie: Knight and Day Cost: $7.50");
System.out.println();

//for movie showing at 4pm

System.out.println(" ~~~~~~~~~~~~~~~ Movie showing at 4pm ~~~~~~~~~~~~~~~");
System.out.println("Hall: 1 Movie ID: 1 Movie: Inception Cost: $10.00");
System.out.println();

//for movie showing at 5pm
System.out.println(" ~~~~~~~~~~~~~~~ Movie showing at 5pm ~~~~~~~~~~~~~~~");
System.out.println("Hall 2: Movie ID: 5 Movie: Toy Story 3 Cost: $7.50");
System.out.println("Hall 3: Movie ID: 9 Movie: The Twilight Saga: Eclipse Cost: $8.50");
System.out.println();

//for movie showing at 6pm
System.out.println(" ~~~~~~~~~~~~~~~ Movie showing at 6pm ~~~~~~~~~~~~~~~");
System.out.println("Hall 1: Movie ID: 2 Movie: Twelve Cost: $9.00");
System.out.println();

//for movie showing at 7pm
System.out.println(" ~~~~~~~~~~~~~~~ Movie showing at 7pm ~~~~~~~~~~~~~~~");
System.out.println("Hall 2: Movie ID: 6 Movie: Twelve Cost: $9.50");
System.out.println("Hall 3: Movie ID: 10 Movie: The Twilight Saga: Eclipse Cost: $10.50");
System.out.println();

//for movie showing at 8pm
System.out.println(" ~~~~~~~~~~~~~~~ Movie showing at 8pm ~~~~~~~~~~~~~~~");
System.out.println("Hall 1: Movie ID: 3 Movie: The Sorcerer's Apprentice Cost: $9.00");
System.out.println();

//for movie showing at 9pm
System.out.println(" ~~~~~~~~~~~~~~~ Movie showing at 9pm ~~~~~~~~~~~~~~~");
System.out.println("Hall 2: Movie ID: 7 Movie: Predator Cost: $9.50");
System.out.println("Hall 3: Movie ID: 11 Movie: Predator Cost: $9.50");
System.out.println();
System.out.println("====================================================================================");
}
else{
System.out.println("******************** End Of Your Booking ********************");
}

}}