![Title Slide
• Mastering OOP in Java – Part 2
• Presented by: [Your Name]
• Institution: [Your Institution]
• Date](https://image.slidesharecdn.com/oopjavapart2-250614060101-3cc78494/85/OOP_Java_Part2-pptxOOP_Java_Part1OOP_Java_Part1-1-320.jpg)
OOP_Java_Part2.pptxOOP_Java_Part1OOP_Java_Part1
- 1. Title Slide • Mastering OOP in Java – Part 2 • Presented by: [Your Name] • Institution: [Your Institution] • Date
- 2. Inheritance • Reuse class features using extends. • Example: • class Dog extends Animal { ... }
- 3. Method Overriding • Redefine superclass method in subclass. • Use @Override annotation.
- 4. Polymorphism • Compile-time: Method Overloading. • Runtime: Method Overriding. • Example: • int add(int a, int b); double add(double a, double b);
- 5. Abstraction • Abstract class: Partially implemented. • Interface: Fully abstract. • Example: • abstract class Shape { abstract void draw(); }
- 6. Interface vs Abstract Class • Abstract Class: Can have state. • Interface: Only constants and abstract methods. • Interfaces allow multiple inheritance.
- 7. Case Study: Shape Class • abstract class Shape { abstract void area(); } • Rectangle, Circle extend Shape and implement area().
- 8. Java Keywords in OOP • this: Refers to current object. • super: Refers to parent class. • final: Prevents override. • static: Shared across instances.
- 9. Best Practices in OOP • Use private fields and public methods. • Prefer composition over inheritance. • Avoid repetition (DRY principle).
- 10. Summary and Activity • Create abstract class Employee. • Subclasses: Manager, Developer. • Override displayDetails().