Question

So i can get access to the list with a getter but how do i add a new user to the list ? What i need to add ?

private List<User> userList= new ArrayList<User>(){{
    add(new User("ABC","123","B","b"));
    add(new User("CBA","123","I","b"));
}}; 

public List<User> getUserList() {
    return userList;
}

Yes i have added 2 users but they are added when i create the list, I wan’ted to have some kind of a method that i can call and it adds a new user to the list. Something like

    public void addNewUser(User){
    //some kind of code
    }

Answer 1

You have added two users here already by using a double brace initialisation block. To add outside of the initialisation block simply run

userList.add(new User("XYZ","42","D","d"));

Or if you have not got access to userlist then

public void addToList(User u) {
    userList.add(u);
}

This second way with the add method follows this pattern (tell dont ask)