What is differance between Abstract and Interface

Answers were Sorted based on User's Feedback



What is differance between Abstract and Interface..

Answer / jasbir singh

An abstract class is a class with at least one function
without definitions.

An Interface is a class which only contains function
declarations, all the functions are specifically and
separately defined later. And you can't create objects of
these classes.

Is This Answer Correct ?    12 Yes 1 No

What is differance between Abstract and Interface..

Answer / poorna chandar rao

diffrence bettwen the abstract class and interfaces

abstract class is having abstarct methods and concrete
methods abstarct class as compulosry having subclass for the
implementation abstarct methods and abstarct does not
support multiple inheritence
because one subclass extend the abstract class their is no
scope for extends for another class because it is not
support for the multiple inheritence
ex 1: abstract class one
2 class two extends one extend three (not valid)

but interface having only method signature in the interface
their is concrete method and it supports the multiple
inhirtence because

ex: interface one
class two implements one extends three(valid)
onc class implemens the interface and extends to another
class that is support the multiple inhertince

Is This Answer Correct ?    3 Yes 0 No

What is differance between Abstract and Interface..

Answer / pankaj kumar upadhyay

abstract class contain an abstract function as well asather functions and variableand it must be defind in derived class and here we no create an object,
ex:
an SBI bank which follow the RBI Rules including it own rules.
while an interface class can contain only an abstract function, not any other functions or variables butit also must be defined in derive class .here also we dont create ao object.
ex:
an RBI follow only itself rules

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More OOPS Interview Questions

Can main method override?

0 Answers  


what is the size of an empty class

12 Answers   Wipro,


what does exactly the linker do?

1 Answers  


what is SPL in c++.

1 Answers  


Write a C++ program without using any loop (if, for, while etc) to print prime numbers from 1 to 100 and 100 to 1 (Do not use 200 print statements!!!)

0 Answers   HCL,






what is an instance of a class

5 Answers  


Which keyword is written to use a variable declared in one class in the other class?

5 Answers   TCS,


what is the advantage in software? what is the difference between the software developer and Engineer

1 Answers  


What is nutshell in programming language?

1 Answers   Satyam, Tech Mahindra,


write knight tour problem which is present in datastructure

0 Answers  


Which is not an object oriented programming language?

0 Answers  


What are the three parts of a simple empty class?

0 Answers  


Categories