Java OOP Interview Notes ☕🚀
This is more than a normal notes it is heavy in depth and i am pretty sure you don't need to watch any tutorial, this notes alone is more than that.
If you're preparing for Java interviews, placements, or backend development, having a strong understanding of OOP is essential.
I've been learning Java and created a collection of interview-focused Java OOP notes that I use for learning and revision.
📚 What's Covered?
The notes cover important concepts such as:
- Classes & Objects
- Constructors
- Encapsulation
- Inheritance
- Polymorphism
- Method Overloading & Overriding
- Abstraction
- Abstract Classes
- Interfaces
-
finalkeyword - Object Class
- Inner Classes
- Wrapper Classes
- Boxing & Unboxing
- And more Java concepts
The goal is to go beyond simply memorizing definitions and understand how these concepts actually work in Java and how they can be discussed in interviews.
🎯 Who is this for?
These notes are useful for:
- College students preparing for placements
- Developers preparing for Java interviews
- Anyone revising Java OOP
- Students learning Java for Spring Boot/backend development
🔗 Full Notes
I've kept the complete notes and examples on GitHub:
https://github.com/Santosh202007/java-notes/tree/main/Java
I'll continue updating the repository as I learn and add more Java concepts.
If you find the notes useful, feel free to ⭐ the repository and share it with someone preparing for Java interviews.
Happy learning! 🚀
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