SOURCE FILE: ex0220.cpp

// Example 2.20. Program to input an integer and print its square   
   
#include <iostream.h>
   
int main(void)   
{   
   int num,      // input 
       square;   // square of num 
   
   
   cout << "Please type in an integer: ";
   cin >> num;
   
   square = num * num;   
   cout << "The square of " <<  num << " is " << square << ".\n";

   return 0;
}