Assign value to a variable : Variables « Language Basics « C++ Tutorial

1. C++ Tutorial
2. Language Basics
3. Variables

#include <iostream> 
using namespace std; 
 
int main() 
{ 
  int length; // this declares a variable 
 
  length = 7; // this assigns 7 to length 
 
  cout << "The length is "; 
  cout << length; // This displays 7 
 
  return 0; 
}

The length is 7"