Interested to Buy Any Domain ? << Click Here >> for more details...
Thanks A.jyotsna,
Can u tell me differnce between abstract class and interface
vikash
- 4 Answers
- 6848 Views
- I also Faced
- E-Mail Answers
Answer Posted / mohammad shoiab
Difference Between Abstract Classes and Interfaces
Abstraction - A way to provide a view to an object
In real life we have examples like resume,hotel menu,
trailer of a movie as examples for abstraction. They
provide an insight into the other object.
Abstract classes and Interfaces are implementation of
abstraction.
abstract class - when u want to create classification or
hierarchy of classes, u can use inheritance and generally
your parent classes would like to impose certain compulsory
behavior along with some free behaviours. in such a case
the compulsory behavior to be declared as abstract, there
by the class should also be declared as abstract, so the
right place for abstract class is only in the case of
inheritance.
Interface - Interface are more related to roles, like for
example, u r a kind of human, and u r playing the role of a
programmer, here human could be a abstract parent class
and programmer could be a interface.
In real life all roles carry compulsory behaviors and if
you want to get into some role, then it is compulsory to
implement all the methods of the role.
"The world is a stage, every one is a actor, every actor
carries a mask, and when the mask changes the role changes,
and when the role changes the behaviour changes"
The roles are interfaces - u know very well one person can
carry many roles, so one class can carry many interfaces
but it can belong to only one classification. Thats why
multiple inheritance is allowed for interfaces and not
allowed for abstract or concrete classes,
Happy!!! - want to know more fundas - contact me -
Shoiab - 9840135749 - Haaris Infotech - The Java Trainers -
Chennai
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
How many types of the indexof method are there for strings?
What is the use of protected in java?
Write a program to reverse array in place?
What is consumer in java?
Write a program to print fibonacci series
How is java hashmap implemented?
How to declare an arraylist in java?
Can we use static class instead of singleton?
What does += mean in java?
What is the default value of the local variables?
Whats the difference between notify() and notifyall()?
What do you mean by chromounits in java8?
What are the advantages of autoboxing?
What is the private method modifier?
How can the checkbox class be used to create a radio button?
