public T deQueue()
{
if (s1.Count() == 0)
{
Console.WriteLine("Q is Empty");
}
T x = (T)s1.Peek();
s1.Pop();
return(x);
}
private static void BasicStackTest()
{
BasicStack <int> stack = new BasicStack <int>();
stack.Push(10);
stack.Push(20);
stack.Push(30);
stack.Push(40);
//stack.PrintStack();
stack.Peek();
Console.WriteLine("Item popped from Stack : {0}", stack.Pop());
//stack.PrintStack();
}