Interested to Buy Any Domain ? << Click Here >> for more details...
what is the abstract class,interface ,its difference with a programatic eg.?
hi,recently i went for an interview they ask me what is abstract class ,interface and its difference
I said abstract class contain abstact method ,abstract method is a method with no body.Abstract class cannot be instantiated.Abstract class is a base class it required derived class for the implementation of method.
Interface is a syntactical contract that all derived class should follow
it define properties ,method,events which are known as member of interface.
Then They asked me what is the difference between them. I said
abstract class interface
1.abstact class can implement method 1.interface cant
2.abstact class can contain constructor, 2.interface cant
destructor
3.abstract class cannot support multiple 3.interface support
inheritance
etc
Then they said some different answer I said dont no.
Then they ask me when i should make abstract class for an project and when
i should make interface.
I said if suppose there is two class which must be having method with different logic then we sholud make abstract class.
and if suppose we have two class having method .with different logic then we can make interface .
Am i correct with my explaination.if not correct me .please provide me that when should we create abstract class and interface and what is difference .please help me
- 1 Answers
- 4752 Views
- I also Faced
- E-Mail Answers
Answer / sachinmundhra
Abstract class will have a pure virtual function. A virtual
function having no body.
virtual void display() = 0 ;
| Is This Answer Correct ? | 0 Yes | 3 No |
In multilevel inheritance constructors will be executed from the .... class to ... class
why in java first invoke public static void main(String args[]) method????Why not public static void method1(String args[])??
What are the benefits of polymorphism?
features of OOPS
22 Answers Ness Technologies, Satyam,
What does the code "cout<<(0==0);" print? 1) 0 2) 1 3) Compiler error: Lvalue required
What is abstract class in oop?
What is difference between pop and oop?
to find out the minimum of two integer number of two different classes using friend function
What is the problem with multiple inheritance?
What is oops in simple words?
what are the characteristics of oops?
what is the realstic modeling?
STL 
