Interested to Buy Any Domain ? << Click Here >> for more details...
What is the differances between a abstract calss and
interface
- 5 Answers
- 11034 Views
- Aviva, Symphony, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
An abstract class holds both method prototpypes and method
definitions also...But it is not in the case of
interface..It can contain only protypes.. It should be
defined only where it is implemented...
| Is This Answer Correct ? | 20 Yes | 3 No |
Answer / abhijit
Abstract base classes can have data members but not interfaces.
Abstract base classes have private access specifier by
default while that of interfaces is public
| Is This Answer Correct ? | 8 Yes | 0 No |
Answer / porchelvi .a
ABTRACT CLASS:
-------------
• It can not be instantiated
• It allow us to specify all access modifier except
Private
• A class inheriting this must implement all of its
abstract method
• A class can inherit only one abstract class at a
time.
• Abstract class can add more functionality with out
destroying child classes that were using old version.
• We can declare the following
1. Fields
2. Constructors
3. Static Constructors
4. Static Functions
5. Concrete Functions
INTERFACE :
---------
• It can not be instantiated
• It allows only public Access modifier
• A class implementing interface must provide body
for its entire member.
• A class can implement more than one interface at a
time.
• Adding of additional functionality will have an
effect on its child class due to the necessary
implementation of interface methods.
• We can not declare the following
1. Fields
2. Constructors
3. Static Constructors
4. Static Functions
5. Concrete Functions
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer / rck
Abstract class is the class which may contain pure virtual
functions as well as normal functions where as interface
may only contain pure virtual functions.
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / kanan
Abstract class: You can inherit only one class.
Interface: You can inherit more than one interface.
Abstract class: It contains both completed and uncompleted
(abstract) methods.
Interface: It only contains uncompleted methods (methods
without body).
Abstract class: Access modifiers are there for methods and
properties.
Interface: It does not have access modifier for methods or
properties. By default they are public.
Abstract class: Fast
Interface: Require more time to find actual method in classes.
Abstract class: It can contain fields and constants.
Interface: no fields can be defining in interface.
| Is This Answer Correct ? | 3 Yes | 0 No |
What exactly is polymorphism?
What is object in oop?
In multiple inheritance , to create sub class object , is there need to create objects for its superclasses??? in java and c++ both. Actually i have some information that is , all available members from its superclasses , memory created in subclass obj , so no need to create object for its superclasses...??? Thanks in Advance
what is the difference between containership and inheritence?
What is function overloading and operator overloading?
What is cohesion in oop?
In multilevel inheritance constructors will be executed from the .... class to ... class
What is interface? When and where is it used?
Write a java applet that computes and displays the squares of values between 25 and 1 inclusive and displays them in a TextArea box
what is difference between class template and template class?
What does and I oop mean in text?
why c++ is called OOPS? waht is inherutance? what is compiler?
STL 
