public static void test_pop_exception()
{
GenericStack <int> stackOfInts = new GenericStack <int>(2);
int nr = stackOfInts.Pop();
Console.WriteLine(stackOfInts.ToString());
}
public static void test_push_pop()
{
GenericStack <int> stackOfInts = new GenericStack <int>(4);
stackOfInts.Push(1);
stackOfInts.Push(2);
stackOfInts.Push(3);
Console.WriteLine("Stack:");
Console.WriteLine(stackOfInts.ToString());
int nrPop = stackOfInts.Pop();
Console.WriteLine("Popped Stack");
Console.WriteLine(stackOfInts.ToString());
Console.WriteLine($"popped number: {nrPop}");
}