feat: Add ClassBluePrint to model a car with fields, behaviors, and toString override

WHAT the code does:
Defines a ClassBluePrint class representing a car with attributes:
- brand, model, color, year, country of origin, and speed.
Implements two behavior methods:
- accelerate(int increment): increases speed.
- brak(int decrement): decreases speed, ensuring it does not go below zero.
Overrides toString() to return a formatted string of all car properties.
main() demonstrates usage by creating a car, assigning attributes, accelerating, and printing details.

WHY this matters:
Demonstrates the idea of a "class as a blueprint" for objects in Java.
Shows encapsulation of both data (fields) and behavior (methods) within a class.
Introduces method overriding via toString() for customized object printing.
Illustrates how objects can model real-world entities with both properties and actions.

HOW it works:
A ClassBluePrint object is created in main().
Its fields are initialized directly (brand = "TATA", model = "EV", etc.).
accelerate(100) increases the car’s speed.
System.out.println(car) automatically calls toString(), printing the formatted details.

Tips and gotchas:
Field names should typically follow Java naming conventions (e.g., color instead of Color).
Methods brak and accelerate manipulate speed directly; in real-world design, validation may be added (e.g., maximum speed limits).
Direct field access is used here, but encapsulation with getters/setters is preferred for larger systems.
The brak() method name looks like a typo—conventionally it would be brake().

Use-cases:
Educational demo of classes, fields, methods, and object instantiation in Java.
Foundation for object-oriented modeling of real-world entities.
Could be extended to simulate car behavior (e.g., fuel consumption, gear system, or safety checks).

Short key: class-classblueprint car-model fields-methods toString-override.

Signed-off-by: https://github.com/Someshdiwan <[email protected]>

Author: Someshdiwan

Section11ObjectOrientedProgramming/OOPs 2.O/src/ClassBluePrint.java

@@ -1,5 +1,4 @@
-public class ClassBluePrint
-{
+public class ClassBluePrint {
     String Color;
     String brand;
     String Model;
@@ -9,24 +8,20 @@ public class ClassBluePrint
     int speed;
 
     //Method hai. Speed ko increment kar raha hai.
-    public void accelerate(int increment)
-    {
+    public void accelerate(int increment) {
         speed += increment;
     }
 
     //Behavior hai toh method mai likh te hai
-    public void brak(int decrement)
-    {
+    public void brak(int decrement) {
         speed -= decrement;
-        if(speed<0)
-        {
+        if(speed<0) {
             speed=0;
         }
     }
 
     @Override
-    public String toString()
-    {
+    public String toString() {
         return
                 "Car Properties:\n" +
                 "Brand: " + brand + "\n" +
@@ -49,4 +44,4 @@ public static void main(String[] args) {
         System.out.println(car);
         System.out.println("Maximum Speed Limit");
     }
-}
+}