Inheritance
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Inheritance allows for the creation of derived classes that inherit capabilities from base classes, while allowing the derived classes to add their own unique properties and behaviors. The chapter discusses key inheritance concepts like access specifiers, generalization in UML class diagrams, substituting base class constructors and member functions, protected access specifiers, abstract base classes, public and private inheritance, multiple inheritance, and aggregation. Multiple inheritance can lead to ambiguity if member functions and constructors are not implemented carefully.
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Inheritance
- 1. Inheritance: Chapter 9: Ms. Munazza Mah Jabeen Assistant Professor of Computer Science
- 2. Inheritance: • Inheritance is the process of creating new classes, called derived classes, from existing or base classes. The derived class inherits all the capabilities of the base class but can add embellishments and refinements of its own
- 3. Access specifiers without/with inheritance: • Derived Class and Base Class • Specifying the Derived Class • Generalization in UML Class Diagrams • Accessing Base Class Members • Substituting Base Class Constructors • Substituting Base Class Member Functions • The protected Access Specifier • Base Class Unchanged • Derived Class Constructors
- 4. Class Hierarchies: • “Abstract” Base Class • Public and Private Inheritance
- 5. Multiple Inheritance: • Member Functions in Multiple Inheritance • Constructors in Multiple Inheritance • No-Argument Constructor • Multi-Argument Constructors • Ambiguity in Multiple Inheritance • Aggregation: Classes Within Classes