Java_OOP_Presentation.pptx and explain about java oops

Java_OOP_Presentation.pptx and explain about java oops

• 1.
  Object-Oriented Programming (OOP) inJava • An overview of OOP principles with examples.
• 2.
  Agenda • 1. Whatis OOP? • 2. Why OOP in Java? • 3. Classes and Objects • 4. Four Pillars of OOP • 5. Advanced Features • 6. Real-Life Applications • 7. Conclusion
• 3.
  What is OOP? •OOP is a programming paradigm based on the concept of objects, which contain data and methods.
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  Why OOP inJava? • • Code reusability • • Easier maintenance • • Real-world modeling • • Scalability
• 5.
  Classes and Objects •• Class: Blueprint for creating objects • • Object: Instance of a class
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  Example: Class andObject • class Car { • String color; • int speed; • void drive() { • System.out.println("Car is driving at speed " + speed); • } • }
• 7.
  Encapsulation - Concept •Encapsulation is wrapping data (variables) and code (methods) together into a single unit.
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  Encapsulation - Example •Getters and setters are used to control access to private data members.
• 9.
  Inheritance - Concept •Inheritance allows one class to acquire the properties and methods of another.
• 10.
  Example: Inheritance • classAnimal { • void sound() { System.out.println("Animal makes a sound"); } • } • class Dog extends Animal { • void sound() { System.out.println("Dog barks"); } • }
• 11.
  Polymorphism - Concept •Polymorphism means the ability of an object to take many forms.
• 12.
  Polymorphism - Types •1. Compile-time (Method Overloading) • 2. Run-time (Method Overriding)
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  Abstraction - Concept •Abstraction hides implementation details and shows only functionality.
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  Abstraction - Analogy •Example: You drive a car without knowing the internal engine details.
• 15.
  Constructors in Java •Special methods used to initialize objects. Types: Default and Parameterized.
• 16.
  Method Overloading vsOverriding • • Overloading: Same method name, different parameters • • Overriding: Redefining parent method in child class
• 17.
  Interfaces in Java •Interfaces provide a way to achieve abstraction and multiple inheritance.
• 18.
  OOP in RealLife • Example: Banking system, Library system, E- commerce applications.
• 19.
  Advantages of OOP •• Reusability • • Flexibility • • Modularity • • Easy Maintenance
• 20.
  Conclusion • Java OOPhelps model real-world problems effectively. • Thank you!