C++ Program to Print Number Entered by User

In the following example of C++ program that prompts the user to enter a number and then prints that number to the console :

Program :

#include <iostream>

int main() {
    int num;
    std::cout << "Enter a number: ";
    std::cin >> num;
    std::cout << "You entered: " << num;
    return 0;
}

Output :

Enter a number: 5
You entered: 5

* This program declares a variable num of type int. The program then prompts the user to enter a number using the std::cout and std::cin objects from the iostream library.

* The >> operator is used to input the user's number into the num variable. Finally, the program uses std::cout to output a message that displays the user's number to the console.