Java Inheritance Has-A Relationship (Car) | What is Has-A Relationship in Java Inheritance?

In Java, the Has-A relationship in inheritance refers to a class having another class as a member. This relationship is often used to model complex objects that contain other objects as part of their state.

Consider the example of a Car class. A car has various components such as an engine, wheels, and seats. Instead of inheriting from these components, the Car class contains instances of them, establishing a Has-A relationship.

In this Java tutorial, we delve into the concept of Has-A relationship using the Car class as an example. We'll explore how the Car class can have member variables representing its components, such as Engine, Wheel, and Seat objects.

Throughout the tutorial, we'll discuss:

1. The significance of Has-A relationship in Java inheritance.
2. How to implement the Has-A relationship in Java classes.
3. Creating member variables in the Car class to represent its components.
4. Understanding how the Car class interacts with its component objects.

By the end of this tutorial, you'll have a clear understanding of the Has-A relationship in Java inheritance and how it can be used to model complex object structures.

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Java Inheritance Has-A Relationship (Car) | What is Has-A Relationship in Java Inheritance?

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[SmartProgramming]

very well explained, thank you 👌👌👍👍🙂🙂

[shyamm_verma]

Sir why we are using getters and setters while we assign the variable ( color, max speed) value in car constructor ?