Questions:
What is the difference between Interface and Abstract Classes?
Sample Answer:
Abstract classes and Interface classes are more over the same but following are the key differences between both of them:
- Abstract classes can have properties whereas Interfaces cannot have properties.
- Abstract classes can have methods of type public and protected whereas Interface classes can have methods of type public only.
- All the methods that we declare in the Interface classes are by default abstract and hence need to have to explicitly specify the keyword “abstract”.
- Classes that are inheriting from another class can implement an Interface at the same time.