File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes Java in General and the fly likes Static Methods Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Java » Java in General
Bookmark "Static Methods" Watch "Static Methods" New topic

Static Methods

Gregg Bolinger
GenRocket Founder
Ranch Hand

Joined: Jul 11, 2001
Posts: 15302

Ok, if I have Class A and it contains 4 static methods.
Then lets say I have 4 more Classes, Class B, Class C, Class D, and Class E.
Now, if I instantiate Class A in B, C, D, and E is there still only 1 instance of each of the static methods in memory from Class A?

GenRocket - Experts at Building Test Data
khella smith
Ranch Hand

Joined: May 06, 2002
Posts: 39
i suppose so because when once u have a static method in a class no matter how many instances of that class u have the method stays the same because it is only loaded once at compile time so i suppose the same would apply for instanciating class a in different class since that static method is in class a alone i suppose it will still stay the same
correct me if i am wrong
i'll appreciate it
khella smith
Cindy Glass
"The Hood"

Joined: Sep 29, 2000
Posts: 8521
Methods are not replicated per object.
Methods are kept in a special "method area" with the Classfile. Some of those methods are tracked as Static and some as member methods.
When a method is invoked the JVM ALWAYS goes to the classfile to find the code to execute. It is over in "classfile-land" that polymorphism takes place.
The only things that actually reside in an object are the variables that track state and a "type" identifier.

"JavaRanch, where the deer and the Certified play" - David O'Meara
I agree. Here's the link:
subject: Static Methods
It's not a secret anymore!