Adding two array lists together and a text file to an array list

Question

I'm having problems coding these two methods... Could someone explain how to do this? I can't find information on it anywhere... :(
"MagazineList" is the class I'm coding in right now, and I already declared "list" as an array list of another class called "Magazine".
public boolean addAll(MagazineList magazines)
       if (list == magazines) {
           return false;
        else {
            list.addAll(magazines);
       return true;
   public boolean addAll(String filename)
       Scanner in = ResourceUtil.openFileScanner(filename);
        if (in == null) {
           return false;
        String line = source.nextLine();
        while (!line.equals("")) {
          list.add(Magazine(source));
       in.close();
   }

Answer 1

I assume "addAll(MagazineList magazines)" is defined in the MagazineList class?
Then,
list.addAll(magazines);probably needs to be something like:
list.addAll(magazines.list);This uses the private variable ( should be private) list from the input MagazineList, and adds all of those Magazine objects to the list in the current MagazineList.
But, yes, describe your problems more clearly, and you'll get better answers more quickly (because people will be able to understand you and give you a suggestion without asking you another question first).