c++ hello world program

#include <iostream>

int main() {
    std::cout << "Hello, World!";
    return 0;
}

Explanation:

• #include <iostream>: This line includes the iostream library, which provides input and output operations in C++. This library is needed to use the std::cout object and the << operator.
• int main() { ... }: This is the main function, which is the entry point of a C++ program. The program execution starts from here.
• std::cout: std::cout is an object of the std::ostream class, which is used to output data to the console.
• <<: This is the stream insertion operator, which is used to insert data into the output stream. In this case, it is used to insert the string "Hello, World!" into std::cout.
• "Hello, World!": This is the string that we want to output to the console.
• ;: The semicolon is used to terminate a statement in C++.
• return 0;: This statement returns an exit code of 0, indicating that the program executed successfully.