Difference between abstract class and interface
- 100 Answers
- 289600 Views
- Accenture, Altruist, Baba Group, CitiGroup, Fiserv, HCL, IBM, iGate, Infosys, Jean Martin, Karthik Industries, Microsoft, OnDLine, TCS, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / shreeram sahu
1.abstract class contain abstract and non abstract methods
but interface contain only abstract methods.
2.abstract method can be declared in public or protected
section. but all components of interface by default are
public.
3.a class can inherit only one abstract class but a class
can implement any no of interfaces.
4.abstract class components are directly reffered in
subclass.butinterface components must be prefixed with the
name of the interface.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / nandhini
ABSTRACT CLASS IS HAVING EXTENDS, IT IS USING IN PRIVATE & PROTECTED.
INTERFACE CLASS IS HAVING IMPLEMENTED, JAVA CLASS IMPLEMENT MULTI INTERFACE,IT IS USING PUBLIC.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / deepak baroliya
1.java abstract class is faster than the interface.
2.all interfaces inherits the non final method of the object class.
3.interface are designed to support dynamic method resolution.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / ved
An abstract class may contain complete or incomplete method.
Interface can contain only the signature of a method but no
body. Thus an abstract class can implement methods but an
interface can not implement method.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / siva choudary
abstract class does not multiple inheritane
interface supports declarative multiple inheritance
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / tevendra singh pardhi(balaghat
Abstract Class:
(1)it contains both abstract methods and non abstract
methods
(2) object can't be created just through reference we are
calling all the methods
(3) it is implemented by subclass i.e which class is
extended from this
abstract class contains only nonabstract this situation
also code will compile fine but problem at runtime
abstract can't be declared with Final Synchronized Native
just your requirements you implement some methods in the
abstract class
this class also contain Constructor
Interface contains all abstract methods
all methods compulsory implemented by particular class
interface does not contain Constructor
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / jenish gandhi
All the methods declared inside an Interface are abstract.
Where as abstract class must have at least one abstract
method and others may be concrete or abstract. In Interface
we need not use the keyword abstract for the methods.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / ravi kant
abstraction mechanism provides a way to manage the system components and there corresponding interaction without considering the details of building those components and, interface is possible in some of the languages where multiple inheritance can't be used.or
interface is a collection of method declaration and constants that one or more classes of objects will use.Interface definition is same as class except that it consists of the method that are declared have have the parameter list.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / gurvinder kaur
1.In interfaces,keyword abstract is necessary.
2.in interfaces all functions should be abstract but in
abstract at least 1 function should be abstract.
3.in interfaces there is no inheritance but it can be in
abstract classes
| Is This Answer Correct ? | 0 Yes | 0 No |
1.we never pass object in abstract class only inherit the
abstract class and in which pass the references only
interface
1.in which declare only member.
2.we can implement the multiple interface.
3. its used only standlizition.
4.we can inherit the interface
| Is This Answer Correct ? | 0 Yes | 0 No |
how do create a repeater
what is managed code and managed data?
Which tool you will use to deploy a windows service
What is the mesi? : Dot net architecture
what is polymorphism and advantage ?
What is cache coherency and how is it eliminated? : .NET Architecture
How do I know when my thread pool work item has completed?
In LINQ TO SQL if it is possible to select the top 5 records from the particular table using select top 5.
How many types of languages does .net support? name at least 10-15?
12 Answers Interac, Six Sigma, TechUnity,
I want to create a project like google maps how can we do that with atlas?
Explain different pipelining hazards and how are they eliminated? : .NET Architecture
what is tracing? Where it used?
Dot Net Framework 
