Abstraction in java
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Abstraction in Java allows hiding unnecessary details through interfaces and abstract classes. Abstract classes can contain abstract and non-abstract methods but cannot be instantiated, and derived classes must override abstract methods. For example, a SHAPE abstract class could define a calculateArea() abstract method for subclasses like Rectangle, Circle, and Triangle to implement differently.
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Abstraction in java
- 1. Abstraction in JAVA -By Akanksha Sawarkar
- 2. What is Abstraction? 5 major pillars of OOP Hiding unnecessary details achieved by using interface and abstract class in Java
- 3. Abstract Classes & Methods • abstract keyword • Contains method Declarations only • can not create object of it • Abstract & non abstract methods • Should override method in derived class
- 4. Example: SHAPE Rectangle Circle Triangle Syntax: abstract public void calculateArea(); calculateArea()
- 5. Thank you