Trying to create An arraylist of arraylists, but encountering this error:

Question

"Syntax error on token 'al1, VariableDeclaratorID expected after this token" on the x.add(al1); line. Any idea why this is occuring? Ignore line 3

import java.util.ArrayList;
public class GameState {//creates a list of the three coins to work with
private ArrayUnsortedList<Coin> coins = new ArrayUnsortedList<Coin>(3);
    private ArrayList<ArrayList<Integer>> x = new ArrayList<ArrayList<Integer>>(3);
    private ArrayList<Integer> al1 = new ArrayList<Integer>();
    private ArrayList<Integer> al2 = new ArrayList<Integer>();
    private ArrayList<Integer> al3 = new ArrayList<Integer>();
    x.add(al1);

Elliott Frisch · Accepted Answer · 2015-08-25 19:49:52Z

2

Yes. It's not in an initializing block (and I think that's what you wanted). Something like

{
    x.add(al1);
}

which will be copied into any constructor (so you could put it in the constructor).

answered Aug 25, 2015 at 19:49

Elliott Frisch

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