Answer the following statements true (T) or false (F)
1. Polymorphism allows the addition of classes providing they were at least considered during program development.
2. When a request is made to use a derived-class-object method through a base-class reference, Visual Basic polymorphically chooses the correct overridden method in the derived class that is associated with the object.
3. Polymorphism allows you to command a wide variety of objects of types related by inheritance as long as you know the objects’ types.
4. The use of polymorphism helps promote software extensibility.
5. Abstract methods and properties do not provide an implementation.
1. False. Polymorphism can be used to include classes that were not even envisioned during
program development.
2. True.
3. False. Polymorphism allows you to command a wide variety of objects of types related by
inheritance even if you do not know the objects’ types.
4. True.
5. True.
You might also like to view...
The F6 key toggles the Access table workspace between the Table Design grid and the Field Properties pane. _________________________
Answer the following statement true (T) or false (F)
What is the best tool for testing DNS?
A. ipconfig B. ping C. tracert D. nslookup
What information would you find in the header of a Transport layer PDU?
A. destination IP address B. cyclic redundancy check C. source MAC address D. window size
You can undo distortions made in a Liquify session by dragging the Liquify state to the Delete current state button on the History panel.
Answer the following statement true (T) or false (F)