public class ArrayStack<T> implements Stack<T> {

	public Object[] mData = new Object[10];
	public int mPosition;

	public ArrayStack() {

	}

	/* (non-Javadoc)
	 * @see Stack#push(T)
	 */
	@Override
	public void push(T item) {
		mData[mPosition++] = item;
	}

	/* (non-Javadoc)
	 * @see Stack#pull()
	 */
	@Override
	@SuppressWarnings("unchecked")
	public T pull() {
		return (T) mData[mPosition--];
	}

	public static void main(String[] args) {
		Stack<String> stack = new ArrayStack<>();

}