Remove duplicates from ArrayLists

Question

I have an ArrayList of custom objects. I want to remove duplicate entries.

The objects have three fields: title, subtitle, and id. If a su

Answer 1

private static List removeDuplicates(List list) {
    ArrayList uniqueList = new ArrayList();
    for (Integer i : list) {
        if (!inArray(i, uniqueList)) {
            uniqueList.add(i);
        }
    }

    return uniqueList;
}

private static boolean inArray(Integer i, List list) {
    for (Integer integer : list) {
        if (integer == i) {
            return true;
        }
    }

    return false;
}