Revision Notes/OOP Principles
Field Entry - OOP Principles
Inheritance
A mechanism where a child class acquires the properties and behaviors of a parent class, enabling code reuse and specialization.
Field Note - Real-world Analogy
“Like a family. Children inherit traits from parents — eye color, height, certain behaviors. But each child is also their own person with unique traits. The child doesn't have to re-learn how to walk (inherited) but might have a unique skill like painting (added behavior).”
Field Observations - Key Topics Covered
Inheritance models an "is-a" relationship. A Dog IS-A Animal. A Car IS-A Vehicle. A Manager IS-A Employee. The child class (subclass) automatically gets all the non-private fields and methods of the parent class (superclass), plus it can add its own.
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