Object Oriented Programming Concepts

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Object Oriented Programming (OOP)

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A programming approach based on objects and classes

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Modularization

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Breaking an application into smaller, manageable modules

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Software Reuse

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Building applications using both new and existing modules

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Five Features of OOP

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Classes, Objects, Encapsulation, Inheritance, Polymorphism

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Class

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A blueprint for creating objects; defines structure and behavior

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Class Requirements

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Clear interface, represents a concept, complete, documented, robust

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Components of a Class

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States (data/attributes) and Methods (behavior)

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Object

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An instance of a class, concrete or conceptual, with unique identity

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Encapsulation

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Hiding the implementation details of a class ('data-hiding')

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Public

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Methods/attributes accessible from anywhere (interface)