Introduction

Overview

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Learning Objectives

• List and discuss the benefits offered by the use of inheritance

• List and discuss the benefits offered by the use of composition

• Describe when inheritance is an appropriate design mechanism

• List the three essential purposes of inheritance

• List and describe the inheritance forms included in Meyer’s Inheritance Taxonomy

• Utilize Coad’s five inheritance checkpoints to determine the effective use of inheritance

• Describe the purpose of an interface

• State the definition of the term polymorphism

• Describe the role polymorphism plays in program design and implementation

• Describe when composition is an appropriate design mechanism

• State the definition of the term polymorphic containment

• Describe why composition is considered a force multiplier

• Utilize inheritance, interfaces, composition, and polymorphism together to achieve optimal design