A class's public members are accessible wherever the program has a reference to an object of that class or one of its subclasses.

A class's private members are accessible only within the class itself.

A superclass's protected members can be accessed by members of other classes in the same package.

Protected access in Java is an intermediate level of access between public and private.

A superclass's protected members can be accessed by members of that superclass.

A superclass's protected members cannot be accessed by members of its subclasses.