OOPs in Java 🚀

This repository contains Object-Oriented Programming (OOPs) examples in Java.
It demonstrates different OOPs concepts like:

• Classes & Objects
• Constructors
• Copy Constructors
• Method Overloading
• Inheritance (Single, Multi-level, Hierarchical, Hybrid)
• Interfaces
• Real-world examples (Employee, Hacker, Car, Student, User, etc.)
• Small Java Programs (like FizzBuzz + Prime Numbers)

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👨‍💻 Author Introduction

Hello! I am Muhammad Saqlain Shoukat also known as Dark Wolf founder and developer of Coding Chat Room, a passionate learner and creator in the field of Web Development, Cybersecurity, Programming, and DevSecOps.

🔹 My mission is to make complex technical concepts simple and easy so that students and professionals can learn without confusion.
🔹 On my platforms, I share tutorials, study notes, and practical tips about Linux, Ethical Hacking, Development, Programming and Cybersecurity.
🔹 I believe in learning by sharing — the more we teach, the more we grow.

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📂 Project Structure

• Employee, Hacker, Car, Student, User → Basic OOPs examples
• Unknown → Method Overloading examples
• StudentGradingSystem → Conditional logic with OOP
• Shape, Circle, Animal, Fruit, Weapon → Inheritance examples
• Oops.java → Main file to run different code snippets

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🔑 FizzBuzz + Prime Program

One special program included here is a modified FizzBuzz that also checks for prime numbers:

public class Oops {
    public static void main(String[] args) {
        for (int i = 1; i <= 100; i++) {
            if (i % 3 == 0 && i % 5 == 0) {
                System.out.println(i + ":" + " FizzBuzz");
            } else if (i % 3 == 0) {
                System.out.println(i + ":" + " Fizz");
            } else if (i % 5 == 0) {
                System.out.println(i + ":" + " Buzz");
            } else if (prime(i)) {
                System.out.println(i + ":" + " Prime");
            }
        }
    }

    public static boolean prime(int num) {
        if (num <= 1) {
            return false;
        }
        for (int i = 2; i <= num / 2; i++) {
            if (num % i == 0) {
                return false;
            }
        }
        return true;
    }
}

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▶️ How to Run

1. Clone or download this repository.
2. Open in VS Code / IntelliJ / Eclipse or any Java IDE.
3. Compile and run:

javac Oops.java
java Oops

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📌 Output Example

2: Prime
3: Fizz
5: Buzz
7: Prime
11: Prime
15: FizzBuzz
17: Prime
23: Prime
29: Prime
...

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📚 More Learning & Connect with Me

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Learning and practicing Java OOPs concepts step by step.