Why doesn't java.util.Set have get(int index)?

Question

I\'m sure there\'s a good reason, but could someone please explain why the java.util.Set interface lacks get(int Index), or any similar get()

Answer 1

To get element in a Set, i use to following one:

public T getElement(Set set, T element) {
T result = null;
if (set instanceof TreeSet) {
    T floor = ((TreeSet) set).floor(element);
    if (floor != null && floor.equals(element))
    result = floor;
} else {
    boolean found = false;
    for (Iterator it = set.iterator(); !found && it.hasNext();) {
    if (true) {
        T current = it.next();
        if (current.equals(element)) {
        result = current;
        found = true;
        }
    }
    }
}
return result;
}