Welcome to the World of C++

C++ was created in 1985 by Bjarne Stroustrup as an "upgrade" to C. While C is a Procedural language (focused on actions/functions), C++ is an Object-Oriented language (focused on data/objects).

Key Upgrades You'll Notice Immediately:

1. Streams for Input/Output

Forget printf and scanf. C++ uses the << and >> operators which are much safer and easier to use.

#include <iostream>
using namespace std;
cout << "Enter your age: ";
cin >> age;

2. The string Class

No more char arrays and null terminators! C++ has a proper string type that grows and shrinks automatically.

#include <string>
string fullName = "Rahul";
fullName += " Jangra"; // Easy joining!

3. Memory Management: new and delete

Instead of malloc and free, C++ uses keywords that are more readable and automatically handle object setup.

int *p = new int(10);
delete p;

4. Namespaces

Avoid "naming collisions." If two libraries both have a function named print(), you can put them in different "rooms" (namespaces) to keep them separate.

std::cout << "Hello"; // std is the standard room

Is C still useful?

Absolutely. C is still the king of OS kernels, drivers, and tiny embedded devices. C++ is the king of complex software like Game Engines (Unreal), Browsers (Chrome/Firefox), and massive desktop apps (Adobe Photoshop).

Almost 100% of your C code is valid C++ code. You can start writing C++ by just taking a C program and changing the filename to .cpp!