Standard Input/Output in C++

 Standard Input/Output in C++

Standard Input/Output (I/O) is the process of reading from and writing to the console (also known as the terminal). In C++, you can use the cin and cout objects to perform standard I/O. Here's an example of using standard I/O in C++:

c++

#include <iostream>

int main() {

  std::string name;

  int age;

  std::cout << "Enter your name: ";

  std::cin >> name;

  std::cout << "Enter your age: ";

  std::cin >> age;

  std::cout << "Hello, " << name << "! You are " << age << " years old." << std::endl;

  return 0;

}

In this example, we're using std::cin to read a string and an integer from the console, and std::cout to print a message to the console using the values entered by the user. When you run this program, you should see the message "Enter your name: " printed to the console, followed by a prompt for the user to enter their name. After the user enters their name and presses enter, the message "Enter your age: " is printed to the console, followed by a prompt for the user to enter their age. After the user enters their age and presses enter, the message "Hello, [name]! You are [age] years old." is printed to the console, where [name] and [age] are replaced with the values entered by the user.