• Post Reply Bookmark Topic Watch Topic
  • New Topic

interface problem  RSS feed

 
deepesh mathur
Ranch Hand
Posts: 39
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
hi all,
i am writing this post to ask that:
1.is it necessary for an interface to have an concrete class(non abstract)implementation? what i mean to say is that can we have a source file compiled with only interfaces and it's implementing abstract classes without a non abstract class???


2.is it the same case with a class extending an abstract class???
i.e. is it necessary to give an non abstract class extending an abstract class to compile code correctly???



i know i am a bit confused so kindly help...
 
marc weber
Sheriff
Posts: 11343
Java Mac Safari
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Have you tried this?

Compilation is one thing. Instantiation is another.
 
deepesh mathur
Ranch Hand
Posts: 39
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
sorry but actually i can't get you really ...
 
Henry Wong
author
Sheriff
Posts: 23292
125
C++ Chrome Eclipse IDE Firefox Browser Java jQuery Linux VI Editor Windows
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Originally posted by deepesh mathur:
sorry but actually i can't get you really ...


Basically, Marc is saying... Yes, it will compile. But what are you going to do with interfaces that don't have any implementations?

Henry
 
Consider Paul's rocket mass heater.
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!