OOP foundations

Composition over Inheritance

Inheritance locks behaviour in at compile time and explodes combinatorially. Composition, “has-a”, keeps it swappable. Prefer it. An animated lesson where the diagram draws itself as the design grows.

  • Lesson 6 of 8
  • Animated diagrams
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OOP foundations

  1. 1Objects & Classes
  2. 2Encapsulation
  3. 3Abstraction
  4. 4Inheritance
  5. 5Polymorphism
  6. 6Composition over Inheritance
  7. 7UML Relationships
  8. 8Abstract class vs Interface
8 lessons, each with diagrams that draw themselves.

What you will learn

  • The "is-a" test, and where it breaks
  • The combinatorial explosion
  • Composition: has-a, and swappable

More low-level design

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Sign in to open itSee plans

DSA comes with the all labs plan and every ChaiCode batch.