//User-specificed Constructor
public Stack(int stackSize)
{
if (stackSize >= 10)
{
stack = new DoubleQ(stackSize);
}
else
{
throw new ArgumentException("Stack size must be at least 10");
}
}
//Default Constructor
public Stack()
{
//creates a default double ended queue with a size
//of 100
stack = new DoubleQ();
}