#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
int ac = 32; // To begin with ASCII Code 32

// without control characters0
.
while(true)

{
 cout << "\nCharacter Decimal Hexadecimal\n\n";

int upper;

for( upper =ac + 20; ac < upper && ac < 256; ++ac)

cout << " " << (char)ac // as character

<< setw(10) << dec << ac

<< setw(10) << hex << ac << endl;

if( upper >= 256) break;

cout <<"\nGo on -> <return>,Stop -> <q>+<return>";

char answer;

cin.get(answer);

if( answer == 'q' || answer == 'Q' )

break;

cin.sync(); // Clear input buffer

}

return 0;

}