public class Stabel<T> {

    private class InternNode {
        T v;
        InternNode neste;
        public InternNode(T verdi) {
            v = verdi;
        }
    }

    private int size = 0;
    private InternNode start;

    public void add(T e) {
        InternNode nyNode = new InternNode(e);
        nyNode.neste = start;
        start = nyNode;
        size++;
    }

    public T pop() {
        T verdi = start.v;
        start = start.neste;
        size--;
        return verdi;
    }
}