What is difference between nested and inner class in Java?

inner classes are in the same file, whereas subclasses can be in another file, maybe in another package . You cannot get an instance of an inner class without an instance of the class that contains it.

There are four types of inner classes: member, static member, local, and anonymous . A member class is defined at the top level of the class. It may have the same access modifiers as variables (public, protected, package, static, final), and is accessed in much the same way as variables of that class.

There are four types of inner classes: member, static member, local, and anonymous . A member class is defined at the top level of the class. It may have the same access modifiers as variables (public, protected, package, static, final), and is accessed in much the same way as variables of that class.