Interested to Buy Any Domain ? << Click Here >> for more details...
Difference between Abstract Class & Interface?
- 4 Answers
- 6921 Views
- HCL, IBM, I also Faced
- E-Mail Answers
Answer Posted / adikeanand@gmail.com
ABSTRACT CLASS:
1)abstract class contains abstract methods with body and concrete methods also.
2) when a class contains abstract methods declare the class as abstract.
3) when we don't want to allow anybody to create object to the class then declare class as abstract.when we want to use the methods of a abstract class write a class which extends abstract class and create reference variable to abstract class and assign subclass object.
4)We can not create object to the abstract class but we can create reference variable.
INTERFACE:
1)Interface contains abstract methods and static final data.
2)when we are writing a class which implementing interface then we have to provide the body for all the abstract methods of interface.
3)If we don't want to provide all the methods of interface then declare the class as abstract.write the class which extends abstract class and write the methods which you have left abstract methods and create reference variable to interface and assign the object of class which extends abstract class.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What is the difference between a jdk and a jvm?
What is microservices java?
What is jep in java?
Why doesn't lsdou work under windows nt? : java security
What is a java proxy?
I am trying to create a new universal user group. Why can't i? : java security
What is a jvm?
What is factory pattern in java?
What is property file in java?
what is the package for freshers in valuelabs.
Can the main method be overloaded?
How common are security breaches? : java security
I run a web server. Am I at risk? : java security
Which is better openjdk or oracle jdk?
What is java net url?
