C++ is a powerful general-purpose programming language created by Bjarne Stroustrup as an extension of the C programming language. It offers both high-level and low-level programming features.
#include <iostream>
int main() {
std::cout << "Hello, World!" << std::endl;
return 0;
}Learn the fundamental concepts of C++ programming, including syntax, structure, and basic operations.
#include <iostream>
using namespace std;
int main() {
// This is a comment
int number = 42;
cout << "The number is: " << number << endl;
return 0;
}C++ supports various data types including integers, floating-point numbers, characters, and more.
int age = 25; // Integer
double price = 99.99; // Double
char grade = 'A'; // Character
bool isStudent = true; // Boolean
string name = "John"; // StringControl flow statements allow you to control the execution flow of your program.
int number = 10;
if (number > 0) {
cout << "Positive number" << endl;
} else if (number < 0) {
cout << "Negative number" << endl;
} else {
cout << "Zero" << endl;
}
// Loop example
for (int i = 0; i < 5; i++) {
cout << i << " ";
}Functions are blocks of code that perform specific tasks and can be reused throughout your program.
// Function declaration
int add(int a, int b) {
return a + b;
}
// Function usage
int result = add(5, 3); // result = 8C++ is an object-oriented programming language that uses classes and objects to create complex programs.
class Student {
private:
string name;
int age;
public:
Student(string n, int a) {
name = n;
age = a;
}
void display() {
cout << "Name: " << name << endl;
cout << "Age: " << age << endl;
}
};