public Person Pop()
{
if (currentElement != null)
{
Person temp = currentElement.ValueOfElement;
currentElement = currentElement.Successor;
return(temp);
}
else
{
throw new NullReferenceException();
}
}
/// <summary>
/// Pops a value from the stack (read and delete)
/// </summary>
/// <returns>the value of the last element</returns>
public T Pop()
{
if (_currentElement == null)
{
throw new NullReferenceException("No elements at the stack!");
}
var value = _currentElement.Value;
_currentElement = _currentElement.Previous;
return(value);
}
/// <summary>
/// pushes a value to the stack
/// </summary>
/// <param name="value">the value</param>
public void Push(T value)
{
var newElement = new StackElement <T>(value);
if (_currentElement == null)
{
_currentElement = newElement;
}
else
{
newElement.Previous = _currentElement;
_currentElement = newElement;
}
}
public void Push(Person item)
{
if (currentElement == null)
{
currentElement = new StackElement()
{
ValueOfElement = item, Successor = null
};
}
else
{
StackElement temp = new StackElement()
{
ValueOfElement = item, Successor = currentElement
};
currentElement = temp;
}
}