Does a concept HAVE to become a class in Design?
What do you mean by abstract classes?
Is is possible to define our own functional interface?
How many instances can be created for an abstract class?
Why are outlet connections required in object-oriented programming?
What are the methods required to create changes in subclasses?
A class inherits from 2 interfaces and both the interfaces have the same method name as shown below. How should the class implement the drive method for both car and bus interface?
Is it possible to override private virtual methods?
What do you mean by Realization?
Explian following terms: Constraint Rules, Design by contract.
What is the use if instanceof keyword?
Define a good interface?
What is diamond inheritance problem? How java 8 solves this problem?