OOPS in JAVA - Ultimate

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✅ Looking for the best notes on OOP concepts in JS? Here’s one for you:

> "OOPS in JS - Ultimate" - Check This

I originally put these notes together back in college, so if you’re working through OOP concepts in Java, they might save you some time. Thought I'd share in case it helps anyone out feel free to check them out!

?? Extra Notes

⭐ Revision and Quick Short Notes for Interview
? Why Java Platform Independent

?? Start here

1. ? Introduction to Object-Oriented Programming
2. ? Basic Terminologies
3. ?️ Creating Our Own Java Class
4. ? Chapter 1 - Question-Answer Practice Set
5. ? Access Modifiers, Getters & Setters
6. ? Constructors in Java
7. ? Chapter 2 - Question-Answer Practice Set
8. ? Inheritance Overview in Java
9. ? Types of Inheritance
10. ? Constructors in Inheritance
11. ? Method & Method Overloading, Void Keyword
    • ? Syntax of a method
    • ? Method returns the sum of two numbers
    • ? Calling a Method
    • ? Process of method invocation
    • ? Overloaded function foo
    • ? Method overloading Type 1 - By changing the return type
    • ? Method overloading Type 1 - By changing the number of arguments passed
    • ? Can we overload java main() method
    • ? Method Overloading and Type Promotion
12. ? Static Keyword
    • ? Java Static Variable
    • ? With Static Variable
    • ? Restriction on Static method
    • ? Static Method
    • ? Static block
    • ? Static Class
13. ? Variable Arguments (VarArgs)
14. ? this & super Keyword
    • ? Without This Keyword
    • ? With This Keyword
    • ? Without Super Keyword
    • ? With Super Keyword
15. ? Method Overriding
    • ? Without Method Overridin
    • ? With Method Overriding
16. ? Overloading and Overriding
17. ? Dynamic Method Dispatch
18. ? Chapter 3 - Question-Answer Practice Set
19. ? Quick One Question-Answer on Chapter 1, 2 & 3
20. ? Abstract Class & Abstract Methods
21. ?️ Introduction to Interfaces
22. ⚖️ Abstract Classes Vs Interfaces
23. ? Why Multiple Inheritance is Not Supported in Java
    • ? Try to implement Multiple Inheritance
    • ? Multiple Inheritance Using Interface
24. ⚙️ Java Interfaces Example & Default Methods
25. ?️ Inheritance in Interfaces
26. ? Polymorphism Concept in Interfaces
27. ? Chapter 4 - Question-Answer Practice Set
28. ? College Level Q&A on Chapters 1, 2, 3 & 4
29. ?️ Projects on Chapters 3 & 4 (Basic & Advance)
30. ? Interpreted vs Compiled Languages
31. ? Is Java Interpreted or Compiled?
32. ⚙️ Java File Compilation Process
33. ? Packages in Java
34. ?️ Creating a Custom Package
35. ? Access Modifiers Experiment
    • ? AccessModifier
    • ? OutSidePackageExperiment
    • ? OutSidePackageSubclassExperiment
36. ? Chapter 5 - Question-Answer Practice Set
37. ? Quick One Question-Answer on Chapter 5

38. ? Wrapper Classes in Java

    • ? Converting int to Integer (Primitive to Wrapper)
    • ? Converting Integer to int (Wrapper to Primitive)
    • ? Autoboxing (Detailed Explanation)
    • ? Unboxing (Detailed Explanation)
    • ? Demonstrate Wrapping and Unwrapping

39. ? Constructor Chaining in Java

    • ? Using Super Keyword in Another Class
    • ? Using This Keyword in the Same Class

40. ? Private Constructors and Singleton Classes

    • ? Using Private Constructors in Singleton Pattern
    • ? Example

41. ? Types of Polymorphism

    • ? Compile-time Polymorphism
    • ? Run-time Polymorphism

42. ?️ Encapsulation Idea

    • ? Java Encapsulation
    • ? Data Hiding

43. ? Nested Interface in Java

44. ⚙️ Modifiers Types

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