Object-Oriented Programming and Design

2.

Fundamentals of Object-Oriented Programming

2.1.

2.1.1.

Definition and Characteristics

2.1.2.

State and Attributes

2.1.2.1.

Types of Attributes

2.1.2.1.1.

Primitive Attributes

2.1.2.1.2.

Reference Attributes

2.1.2.2.

Attribute Visibility

2.1.3.

Behavior and Methods

2.1.3.1.

Method Definition and Signature

2.1.3.2.

Method Parameters and Return Types

2.1.3.3.

Method Scope and Visibility

2.1.4.

2.1.4.1.

Object Identity vs Equality

2.1.4.2.

Object References and Memory Addresses

2.2.

2.2.1.

Blueprint for Objects

2.2.1.1.

Class Declaration and Syntax

2.2.1.2.

2.2.1.2.1.

2.2.1.2.2.

2.2.2.

Class Definition vs Object Instantiation

2.2.2.1.

Instantiating Objects

2.2.2.2.

Constructors and Initialization

2.2.2.3.

Object Lifecycle

2.3.

Messages and Method Invocation

2.3.1.

Method Invocation

2.3.1.1.

Calling Methods on Objects

2.3.1.2.

Passing Arguments

2.3.1.3.

2.3.2.

Message Passing

2.3.2.1.

Concept of Sending Messages

2.3.2.2.

Dynamic Dispatch

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3. The Four Pillars of OOP