C++ program to print decimal value of Keys appear in Keyboard

//Print decimal value of buttons appear in keyboard

#include<iostream.h> 

using namespace std;

 int main()

 { 

       int a; 

       char b; 

         for(a=0;a<=255;a++)

            { 

               b=(char)a;

               cout<<"\nASCII value of character=> "<<b<<" "<<a;

            } 

     return 0; 

}

/*:-output wiil be like:-
ASCII value of character   : 32

ASCII value of character '!' : 33 

ASCII value of character' " '   : 34 

ASCII value of character '#'  : 35 

ASCII value of character '$'  : 36 

ASCII value of character '%'  : 37 

*/