Username/Password Authentication code

/*
 * A.C. Silvestri
 * 10/14/2017
 * Username/Password Authentication code
 * Chapter 4 Strings Demo
 */

import java.util.Scanner;

public class Login {

    private static void workTheSystem() {
        System.out.println("You are manipulating the system ...");
    }

    public static void main(String[] args) {
        String username, password;

        Scanner input = new Scanner(System.in);
        System.out.print("Enter Username: ");
        username = input.nextLine();
        System.out.print("Enter Password: ");
        password = input.nextLine();
        input.close();

        username = username.trim();
        password = password.trim();

        if (username.equalsIgnoreCase("admin") &&
            password.equals("12345")) {
            System.out.println("You are authorized to use this system.");
            workTheSystem();
        }
        else {
            System.out.println("Credentials invalid.  Go away.");
        }

    }

}