Student and Alumnus is each an indirect superclass of Faculty, Staff, Administrator and Teacher.

Employee is a direct superclass of Faculty and Staff.

Staff is an indirect superclass of Administrator and Teacher.

Staff inherits directly from Student which extends CommunityMember.

Faculty inherits from Employee who is a CommunityMember.

Teacher extends Faculty which inherits from Employee who is a CommunityMember.

A Circle is a TwoDimensionalShape and is a Shape.

A Cube is a ThreeDimensionalShape and is a Shape.

A Shape inherits from TwoDimensionalShape and ThreeDimensionalShape.

Several is-a relationships follow the arrows from the bottom of the diagram to the topmost superclass in this class hierarchy.

Triangle inherits from TwoDimensionalShape which extends Shape.

Tetrahedron extends ThreeDimensionalShape which inherits from Shape.

The subclass can redefine the superclass method with an appropriate implementation.

Usually commonality will be expressed in the members of the superclass.

Objects of all classes that extend a common superclass can be treated as objects of that superclass.

A subclass is not allowed to inherit methods that it does not need or should not have.

Even when a superclass method is appropriate for a subclass, that subclass often needs a customized version of the method.

A Circle is a TwoDimensionalShape and is a Shape.

A Cube is a ThreeDimensionalShape and is a Shape.

A Shape inherits from TwoDimensionalShape and ThreeDimensionalShape.

Several is-a relationships follow the arrows from the bottom of the diagram to the topmost superclass in this class hierarchy.

Triangle inherits from TwoDimensionalShape which extends Shape.

Tetrahedron extends ThreeDimensionalShape which inherits from Shape.

A Circle is a TwoDimensionalShape and is a Shape.

A Cube is a ThreeDimensionalShape and is a Shape.

A Shape inherits from TwoDimensionalShape and ThreeDimensionalShape.

Several is-a relationships follow the arrows from the bottom of the diagram to the topmost superclass in this class hierarchy.

Triangle inherits from TwoDimensionalShape which extends Shape.

Tetrahedron extends ThreeDimensionalShape which inherits from Shape.

Student and Alumnus is each an indirect superclass of Faculty, Staff, Administrator and Teacher.

Employee is a direct superclass of Faculty and Staff.

Staff is an indirect superclass of Administrator and Teacher.

Staff inherits directly from Student which extends CommunityMember.

Faculty inherits from Employee who is a CommunityMember.

Teacher extends Faculty which inherits from Employee who is a CommunityMember.

Student and Alumnus is each an indirect superclass of Faculty, Staff, Administrator and Teacher.

Employee is a direct superclass of Faculty and Staff.

Staff is an indirect superclass of Administrator and Teacher.

Staff inherits directly from Student which extends CommunityMember.

Faculty inherits from Employee who is a CommunityMember.

Teacher extends Faculty which inherits from Employee who is a CommunityMember.

For a superclass and a subclass, the objects of your class will receive all of the state (fields) and behavior (methods) of the parent class.

For a superclass and a subclass, the constructors and static methods or fields will be inherited.

In Java, the indirect superclass is any class above the direct superclass in the class hierarchy.

Inheritance is sometimes also referred to as specialization because the subclass exhibits the behaviors of its superclass and can add behaviors that are specific to the subclass.

While has-a represents composition, is-a represents inheritance.

Every class in Java directly or indirectly inherits from (i.e. extends) object.

An indirect superclass is any class above the direct superclass in the class hierarchy.

Student and Alumnus is each an indirect superclass of Faculty, Staff, Administrator and Teacher.

Employee is a direct superclass of Faculty and Staff.

Staff is an indirect superclass of Administrator and Teacher.

Staff inherits directly from Student which extends CommunityMember.

Faculty inherits from Employee who is a CommunityMember.

Teacher extends Faculty which inherits from Employee who is a CommunityMember.

A Circle is a TwoDimensionalShape and is a Shape.

A Cube is a ThreeDimensionalShape and is a Shape.

A Shape inherits from TwoDimensionalShape and ThreeDimensionalShape.

Several is-a relationships follow the arrows from the bottom of the diagram to the topmost superclass in this class hierarchy.

Triangle inherits from TwoDimensionalShape which extends Shape.

Tetrahedron extends ThreeDimensionalShape which inherits from Shape.