Core Java

This repository contains Core Java concepts implemented with simple, focused examples.
It is intended for revision and strengthening Java fundamentals used in backend development.

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📌 Purpose of This Repository

• Revise core Java concepts with hands-on code
• Understand how Java works internally, not just definitions
• Build a strong foundation before moving to advanced frameworks

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📚 Topics Covered

This repository includes examples and practice code related to:

🔹 Object-Oriented Programming (OOP)

• Encapsulation
• Inheritance
• Polymorphism
• Abstraction
• Interfaces & Abstract Classes

🔹 Multithreading & Concurrency

• Threads and Runnable
• Synchronization
• Locks (ReentrantLock)
• Thread-safety examples

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🏦 Real-World Examples

Most examples are implemented using real-world domains, such as:

• Banking systems
• Account and money transfers
• Payment services
• Transaction handling

This approach helps bridge the gap between theoretical concepts and practical backend development.

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🛠️ Tech Stack

• Language: Java
• IDE: IntelliJ IDEA
• Build Tool: None (plain Java for better clarity)
• Focus: Core Java only (no frameworks like Spring)

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