When I try to type in a set user to add to the friends list, it shows up blank via [[]].
I know I'm missing something or it's the way I set up the input, but I can't figure it out.

Main Driver

import java.util.*;

public class main  
{

    public static void main(String[] args) 
    {
        Scanner input = new Scanner(System.in);

        int count = 0;

        FacebookUser user1 = new FacebookUser("anthony", "fenrir");

        System.out.println("Create your account");
        System.out.println("---------------------");
        System.out.println("Username: ");
        String userInput = input.next();
        System.out.println("Password: ");
        String passInput = input.next();
        System.out.println("Password Hint: ");
        String passHintInput = input.next();

        String username = userInput;
        String password = passInput;
        user1.setPasswordHint(passHintInput);

        System.out.println("\nLog in");
        System.out.println("---------------------");
        System.out.println("Username: ");
        String login = input.next();

        if (username.equals(login))
        {
            while (count < 2)
            {
                System.out.println("Password: ");
                login = input.next();

                if (password.equals(login))
                {
                    System.out.println(username.toString());
                    break;
                }
                else
                {
                    System.out.println("Incorrect password. Try again");
                    count ++;
                }

                if (count == 2)
                {
                user1.getPasswordHelp();
                System.out.println("Password: ");
                login = input.next();
                }
            } 

        }
        else
            System.out.println("Incorrect username.");

        ArrayList<FacebookUser> friendslist = new ArrayList<FacebookUser>();
        FacebookUser face = new FacebookUser("finn", "backpack");

        int choiceIn;

        do
        {
            choiceIn = displayMenu();
        if (choiceIn == 1)
        {
             System.out.println(user1.getFriends());

        }
        if (choiceIn == 2)
        {
            System.out.println("Enter in a friend to add.");
            System.out.println("Friend's username:");
            String name = input.next();

            user1.friend(face);
        }
        if (choiceIn == 3)
        {
            System.out.println("Enter in a friend to delete.");
            System.out.println("Friend's username:");
            String name = input.next();

            user1.defriend(face);
        }
        if (choiceIn == 4)
        {
            System.out.println("You have logged out.");
        }

        } while ((choiceIn >=1) && (choiceIn <= 3));


    }

    public static int displayMenu() 
    {
        Scanner input = new Scanner(System.in);
        int choice;

        System.out.println("\n Menu");
        System.out.println("1. List Friends");
        System.out.println("2. Add a User as a Friend");
        System.out.println("3. Delete a Friend");
        System.out.println("4. Quit");
        System.out.println("\n What would you like to do?");
        choice = input.nextInt();

        return choice;
    }


}

UserAccount Class

public abstract class UserAccount 
{

    private String username;
    private String password;
    private boolean active;


    public UserAccount(String username, String password) 
    {
        this.username = username;
        this.password = password;
        this.active = true;

    }

    public boolean checkPassword()
    {
        return password == this.password;
    }

    public void deactivateAccount()
    {
      active = false;
    }

    public String toString()
    {
        return  username;
    }

    @Override
    public boolean equals(Object obj)
    {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        UserAccount other = (UserAccount) obj;
        if (username == null) 
        {
            if (other.username != null)
                return false;
        } 
        else if (!username.equals(other.username))
            return false;
        return true;
    }

    public int hashCode(Object username)
    {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((username == null) ? 0: username.hashCode());
        return result;
    }

    public boolean isActive() 
    {
        return active;
    }

    public abstract void getPasswordHelp();


}

FacebookUser Class

import java.util.*;
public class FacebookUser extends UserAccount implements Comparable<FacebookUser>
{
    private String passwordHint;
    private ArrayList<FacebookUser> friends;

    public FacebookUser(String username, String password) 
    {
        super(username, password);
        friends = new ArrayList<>();
    }

    public void setPasswordHint(String passwordHint)
    {
        this.passwordHint = passwordHint;
    }


    public void friend(FacebookUser newFriend)
    {
        if (friends.contains(newFriend))
            System.out.println("Could not find this user to add.");
        else
            friends.add(newFriend);
    }

     public void defriend(FacebookUser formerFriend)
    {
        if (friends.contains(formerFriend))
            friends.remove(formerFriend);
        else
            System.out.println("There is no friend with this username");
    }

     ArrayList<FacebookUser> getFriends()
    {
         ArrayList<FacebookUser> friendsCopy = new ArrayList<FacebookUser>();

         for (int i = 0; i < friends.size(); i++) 
            {
                friendsCopy.add(friends.get(i));
            }

            Collections.sort(friendsCopy, new Comparator<FacebookUser>()
                    {
                        public int compare(FacebookUser v1, FacebookUser v2)
                        {
                            return v1.toString().compareTo(v2.toString());
                        }
                    });

            return friendsCopy;
    }
     //
    @Override
    public void getPasswordHelp() 
    {
        System.out.println("The password hint is: " + passwordHint);
    }


    @Override
    public int compareTo(FacebookUser o) 
    {
        return 0;
    }


    public String toString()
    {
        return friends.toString();
    }

}

When the menu pops up I select add friend option so i can add finn to the friends list. And then I can choose the display option to display the friends I've added.

When I add finn, the name doesn't show up after I display it.

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