What is the process of combining simpler data types into more complex data types called?

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What is the process of combining simpler data types into more complex data types called?

Composition is the process of building more complex data types by combining simpler parts. In code, you create a complex type by assembling fields or components that are themselves types, so you can reuse and organize data cleanly. For example, a Car type can be composed of an Engine, Wheels, and a Chassis—each a separate type with its own attributes. This approach shows how parts come together to form a whole. It differs from inheritance, which expresses an is-a relationship and extends a base type; encapsulation, which bundles data and behavior and controls access; and abstraction, which hides details and exposes a simpler interface. By assembling complex data this way, you model real-world structures from smaller building blocks.

Composition is the process of building more complex data types by combining simpler parts. In code, you create a complex type by assembling fields or components that are themselves types, so you can reuse and organize data cleanly. For example, a Car type can be composed of an Engine, Wheels, and a Chassis—each a separate type with its own attributes. This approach shows how parts come together to form a whole. It differs from inheritance, which expresses an is-a relationship and extends a base type; encapsulation, which bundles data and behavior and controls access; and abstraction, which hides details and exposes a simpler interface. By assembling complex data this way, you model real-world structures from smaller building blocks.

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