In Java, nested classes are categorized as either static member classes or ... as local classes because (as with local variables) they are local to the methods in which they are declared.

The static keyword often confuses junior Java developers. A static variable is one that is not attached to an instance, and a static method is one that does not require an instance to be invoked.

Now, type inference empowers the compiler to choose the static type of the variable ... has steadily expanded over the years. In Java 5, when generic methods were introduced, we also introduced ...