Object-Oriented Programming and Design

5.

Relationships Between Classes

5.1.

5.1.1.

Has-A Relationship

5.1.1.1.

Loosely Coupled Relationship

5.1.1.2.

Navigability in Associations

5.1.2.

5.1.2.1.

5.1.2.2.

5.1.2.3.

5.1.3.

Bidirectional vs Unidirectional Association

5.2.

5.2.1.

Stronger Has-A Relationship

5.2.1.1.

Whole-Part Relationship

5.2.2.

Independent Lifecycles

5.2.2.1.

Aggregated Objects Can Exist Independently

5.3.

5.3.1.

Strongest Has-A Relationship

5.3.1.1.

Ownership and Containment

5.3.2.

Dependent Lifecycles

5.3.2.1.

Part Cannot Exist Without Whole

5.4.

5.4.1.

Uses-A Relationship

5.4.1.1.

Temporary Association

5.4.2.

Transient Relationship

5.4.2.1.

Dependency Injection

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6. Principles of Object-Oriented Design