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Java Classes and Methods: The Building Blocks of Java Programming

What is a Class?
A class is a blueprint for creating objects, defining properties (fields) and behaviors (methods).

Example: Car Class
class Car {
String color;
int speed;
void drive() {
System.out.println("The car is driving...");
}
}
Breakdown:

• Car is the class name
• color and speed are instance variables (fields)
• drive() is a method (behavior)

Types of Methods:

1. Instance Methods: Belong to objects of the class
2. Static Methods: Belong to the class itself, no object needed
3. Constructor Methods: Special methods to initialize objects

Why Classes and Methods Matter:

• Modularity: Divide programs into smaller parts
• Reusability: Write once, use multiple times
• Encapsulation: Bundle data and methods for safety and organization
• Object-Oriented Design: Foundation of Java, helps build scalable apps

Key Takeaways:

• Classes are blueprints for objects
• Methods define actions and behaviors
• Organized, reusable, and scalable code is essential for effective Java programming.