Question

What is the effect of the following statements? If a statement is invalid, explain why it is invalid. The classes stackADT, stackType, and linkedStackType are as defined in this chapter.
2.1.1. stackADT<int> newStack;
2.1.2. stackType<double> sales(-10);
2.1.3. stackType<string> names;
2.1.4. linkedStackType<int> numStack(50);