Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / mohd shakir
I think if you have basics knowledge of any OO language then you should be aware of basic definition of Interface and Abstract class.
Here I am going to explain when to use Interface and when to use Abstract class.
Abstract class:-> If you have a common functionality that is used by its subclasses then put that method in super abstract class(now you need not to define that common method in every subclass again and again) This is what you can't do with Interface(because all the methods are by default abstract).
Interface:-> If you don't have the scenario as I discussed above(in abstract class)then choose Interface.And you can also achieve multiple inheritance using Interface that is not possible in case of Abstract class.
| Is This Answer Correct ? | 21 Yes | 1 No |
Post New Answer View All Answers
What is the difference between state-based unit testing and interaction-based unit testing?
When a byte datatype is used?
What is java ceil?
Why are functions called methods in java?
Differentiate between static and non-static methods in java.
What are format specifiers in java?
What is static and final keyword in java?
What is the purpose of sizeof operator?
what is aggregation in java?
Why do we create public static method in java?
In which order the iterator iterates over collection?
Give reasons supporting that string is immutable.
What is valid keyword in java?
What is bytecode verifier?
What are the 7 types of characters?
