🚀 Java Classes and Methods
Arun Kumar

Arun Kumar @arun_kumar_98

Joined:
Aug 12, 2025

🚀 Java Classes and Methods

Publish Date: Aug 20
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🚀 Java classes and methods are, why they matter, and how to use them effectively.
🔹 What is a Class in Java?
A class in Java is a blueprint and structure for creating objects. It defines:
📝 Properties (fields or attributes)
⚡ Behaviors (methods)

  • A class defines the structure, while the object is created when the class is instantiated.

🏎 Example: Car Class
class Car {
String color;
int speed;

void drive() {
    System.out.println("The car is driving...");
}
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}
✨ Breakdown:
🚗 Car → the name of the class
🎨 color & ⚡ speed → instance variables (fields)
🛣 drive() → a method (behaviour)

🔹 Types of Methods in Java
There are 3 main types:
1️⃣ Instance Methods – Belong to objects of the class.
2️⃣ Static Methods – Belong to the class itself, no object needed.
3️⃣ Constructor Methods – Special methods to initialize objects.

🔹 Why Are Classes and Methods Important?
✨ Here’s why they matter in Java programming:
📦 Modularity → Divide programs into smaller, easier parts.
🔁 Reusability → Write once, use multiple times.
🔒 Encapsulation → Bundle data + methods for safety and organization.
🏗 Object-Oriented Design → Foundation of Java, helps build scalable apps.
🎯 Final Thoughts

Classes = Blueprints 🏗
Methods = Actions ⚡

✅ Organized
✅ Reusable
✅ Scalable

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