Variables

C++ works very close to memory, so you must carefully label what you store with a type.

How to make C++ remember things

int number = 2026;
std::string welcome = "Hello, C++!";

Translation:

Remember one number (int) named number with the value 2026;
Remember one string named welcome with the value "Hello, C++!";

In C++, every sentence must end with a semicolon (;).

Basic types you can use in C++

int age = 20;                // integer (most common)
double score = 95.5;         // floating-point number
char grade = 'A';            // a single character
bool isReady = true;         // true or false
std::string name = "Alex";   // a string of text

Pull it out yourself

#include <iostream>
#include <string>

int main() {
    int x = 7;
    std::cout << "The number I remembered is " << x << "!" << std::endl;
    return 0;
}

C++ strictly enforces the types you declare. If you try to put text into a number box, it will immediately warn you. That strictness is what helps you build solid, bug-resistant programs.