C++ Tutorial

Master C++ programming with our comprehensive tutorial. Learn through examples and hands-on practice.

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Introduction to C++

C++ is a powerful general-purpose programming language that extends C with object-oriented features.

Examples:

#include <iostream>
using namespace std;

int main() {
    cout << "Hello World!" << endl;
    return 0;
}

A simple Hello World program in C++

Basic C++ Syntax

Learn the fundamental syntax and structure of C++ programs including variables, data types, and operators.

Examples:

#include <iostream>
#include <string>
using namespace std;

int main() {
    int number = 42;
    double pi = 3.14159;
    char grade = 'A';
    bool isValid = true;
    string name = "John";
    
    cout << "Number: " << number << endl;
    cout << "Pi: " << pi << endl;
    cout << "Grade: " << grade << endl;
    cout << "Is Valid: " << isValid << endl;
    cout << "Name: " << name << endl;
    
    return 0;
}

Common data types and variable declarations with output

#include <iostream>
using namespace std;

int main() {
    int a = 10, b = 3;
    
    // Arithmetic operators
    int sum = a + b;
    int difference = a - b;
    int product = a * b;
    int quotient = a / b;
    int remainder = a % b;
    
    cout << "Sum: " << sum << endl;
    cout << "Difference: " << difference << endl;
    cout << "Product: " << product << endl;
    cout << "Quotient: " << quotient << endl;
    cout << "Remainder: " << remainder << endl;
    
    return 0;
}

Basic arithmetic operators in C++ with output

Control Structures

Control structures allow you to control the flow of program execution.

Examples:

#include <iostream>
using namespace std;

int main() {
    // If-else statement
    int score = 85;
    cout << "Score: " << score << " - ";
    
    if (score >= 90) {
        cout << "Grade A" << endl;
    } else if (score >= 80) {
        cout << "Grade B" << endl;
    } else {
        cout << "Grade C" << endl;
    }
    
    // For loop
    cout << "For loop output: ";
    for (int i = 0; i < 5; i++) {
        cout << i << " ";
    }
    cout << endl;
    
    // While loop
    cout << "While loop output: ";
    int count = 0;
    while (count < 5) {
        cout << count << " ";
        count++;
    }
    cout << endl;
    
    return 0;
}

Common control structures in C++ with output