This week's book giveaways are in the Java EE and JavaScript forums.
We're giving away four copies each of The Java EE 7 Tutorial Volume 1 or Volume 2(winners choice) and jQuery UI in Action and have the authors on-line!
See this thread and this one for details.
The moose likes Beginning Java and the fly likes instance field Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


Win a copy of The Java EE 7 Tutorial Volume 1 or Volume 2 this week in the Java EE forum
or jQuery UI in Action in the JavaScript forum!
JavaRanch » Java Forums » Java » Beginning Java
Bookmark "instance field" Watch "instance field" New topic
Author

instance field

pooja jain
greenhorn
Ranch Hand

Joined: Jan 12, 2005
Posts: 213
I read this statement from core java - cays - sun microsystems book .

interface can't have instance field & implemented method .

implemented method is OK but what is the meaning of instance field .

thanks in advance .
pooja .


:d
M Beck
Ranch Hand

Joined: Jan 14, 2005
Posts: 323
unless i'm badly mistaken, an "implemented field" is to variables what an "instance method" is to a procedure / code snippet. that is, a variable that wouldn't be considered fully virtual, one that would be instantiated if the class were to be instantiated. i might be wrong, though.
Mike Gershman
Ranch Hand

Joined: Mar 13, 2004
Posts: 1272
an instance field is a non-static variable

interface variables are always static, final, and public. These modifiers can be used but are unnecessary.


Mike Gershman
SCJP 1.4, SCWCD in process
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: instance field