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What is Abstraction
Show What, Hide How
Abstraction means exposing what an object does and hiding how it does it. You press "Book Ride" in Uber without knowing how the driver is matched.
| Concept | Focus | Tool in Java |
|---|---|---|
| Abstraction | hiding complexity, showing essentials | abstract classes, interfaces |
| Encapsulation | protecting data inside an object | private fields + methods |
Note: Java gives two tools for abstraction: abstract classes (this module) and interfaces (next module).