Which of these is an correct way of defining generic class?
A. class name(T1, T2, ..., Tn) { /* ... */ }
B. class name
C. class name[T1, T2, ..., Tn] { /* ... */ }
D. class name{T1, T2, ..., Tn} { /* ... */ }
Answer: Option B
This Question Belongs to Java Program >> Interfaces And Abstract Classes
A. A contract specifying a set of methods that a class must implement
B. A class that cannot be instantiated
C. A class that contains only static methods
D. A subclass of the Object class
In Java, can a class implement multiple interfaces?
A. Interfaces cannot be implemented by classes
B. Only abstract classes can implement interfaces
C. No, a class can only implement one interface
D. Yes, a class can implement multiple interfaces
What is the purpose of an abstract class in Java?
A. To declare abstract methods
B. To provide a base class with common methods and fields
C. To make a class final
D. To declare abstract methods
Join The Discussion