What is an abstract class?
A. A class that has direct instances, but whose descendants may have direct instances
B. A class that has direct instances, but whose descendants may not have direct instances
C. A class that has no direct instances, but whose descendants may have direct instances
D. All of the mentioned
Answer:A
What is an abstract class?
A. A class that has direct instances, but whose descendants may have direct instances B. A class that has direct instances, but whose descendants may not have direct instances C. A class that has no direct instances, but whose descendants may have direct instances D. All of the mentioned