Generally, final static members especially, variables (or static final of course, they can be used in either order without overlapping the meaning) are extensively used with
Static members are those which can be accessed without creating an object. This means that those are class members and nothing to do with any instances. and hence can not be defined in the method.
Final in other terms, is a constant (as in C). You can have final variable inside the method as well as at class level. If you put final as static it becomes "a class member which is constant".