ArrayList

Posted on   |   In

An ArrayList or a dynamically resizing array, is an array that resizes as needed while still providing O(1) access.

public ArrayList<String> merge(String[] words, String[] more) {
    List<String> list = new ArrayList<String>();
    for (String s : words) {
        list.add(s);
    }
    for (String s : more) {
        list.add(s);
    }
    return list;
}