Simple newbie question about arrays..

Question

Hello all,
I have two arrays declared like so below the class header:
String Players[];
String Final[];
I have a method like the following:
public String[] CollectPlayers() {
Players[0] = new String(txtPlayer1.getString());
return Players;
I am calling this method like so
Final = CollectPlayers();
Basically not working, giving nullpointerexception, but I feel that I am fundamentally not understanding something, so here is what I want...
A method that returns an array and (ideally) use this method directly in creating a ChoiceGroup, like this...
optBull = new ChoiceGroup("Bully", ChoiceGroup.EXCLUSIVE, CollectPlayers(), arrImage);
Is this possible? Any ideas?
Thanks in advance
poncenby

Answer 1

A few points:
- You almost never need to call new String(String).
- You may want to create an ArrayList (dynamic array) and then call toArray(new Players[0]) if you need it to be a fixed array.
e.g.
final List players = new ArrayList();
public List collectPlayers(List players) {
    List finals = new ArrayList();
    for(int i=0;i<players.size();i++) {
        Player player = (Player) players.get(i);
        finals.add(players.getResult());
    return finals;
players.add(new Player("anne"));
players.add(new Player("bob"));
players.add(new Player("fred"));
List finals = collectPlayers(players);