public bool Add(Product item)
{
if (!this.CanAddItem(item))
{
return false;
}
this.bagWeigth += item.Weight;
this.bagCost += item.Cost;
this.products.Push(item);
return true;
}
private bool CanAddItem(Product item)
{
return this.bagWeigth + item.Weight <= this.bagCapacity;
}