public Object pop()
{
var topElement = StackComponent.top();
StackComponent = StackComponent.pop();
return(topElement);
}
public Stack()
{
StackComponent = new EmptyStack();
}
public void push(Object anObject)
{
StackComponent = StackComponent.push(anObject);
}
public NonEmptyStack(Object anObject, int previousNumberOfItems, StackComponent previousTop)
{
numberOfItems = previousNumberOfItems + 1;
previousTopObject = previousTop;
topItem = anObject;
}
