Interested to Buy Any Domain ? << Click Here >> for more details...
why interfaces are faster than abstract classes?
- 4 Answers
- 20245 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / aruna raman
Actually abstract are faster than interfaces classes.
interfaces are Slow, requires extra indirection to find the
corresponding method in the actual class. Modern JVM's are
discovering ways to reduce this speed penalty.
Abstract Class ::
- It cannot defines all the methods
- It has subclass.
- Here, Subclass is useless
- A class can be extend an abstract class
Interface ::
- It defines all the methods
- It must have implementations by other classes, But there
will be no use of that.
- Only an interface can extend another interface.
| Is This Answer Correct ? | 16 Yes | 3 No |
Answer / laxmikant
As Interfaces always have abstract methods, it needs less
time for compiler to compile them as compared to abstract
classes which may have well defined methods for sharing
among the classes which will extend it.
| Is This Answer Correct ? | 4 Yes | 16 No |
Answer / m gangadhar
using interfaces over abstract classes is gives better
ferformance becoz interfaces does not have any constructor
but abstract classes can have. for this reason it does not
vaste time to create object.
| Is This Answer Correct ? | 11 Yes | 29 No |
What is bool mean?
How many days will it take to learn java?
Is namespace same as package in java?
What is the instance of an object?
Why is java multithreaded?
What is the use of join method?
what is session facade ?
Say any two properties in beans?
What is a stream? what are the different types and classes of Streams?
When we serialize an object does the serialization mechanism saves its references too?
how to call one program .class file in another program
what is the purpose of class "Object" which is base class for all classes?
Core Java 
