[请求] static private variables in Java

[陨石]

What is the benefit to declare a private variable with static if this variable will only be referenced by non-static methods?

Thanks

 

[newer]

Static variable is a global variable for
all instances of a class. If you have
a private static variable and change it
in one instance, all other instance will
know the change too.

 

[陨石]

Ok, good point. Thanks.
If we add a "final" keyword on it, so no change will be allowed on private static final variable,
is there still any benefit to do so?
Thanks.