#include <iostream>
#include <iomanip>
#include <ctype.h>

using namespace std;

int main()
{
    int i = 0;
    float f = 0;
    double d = 112.119499888;
    
    f = 12.119499888;
    
    do
    {
    cout << "\n i="<< i++ << setw(20) << "Double = " << setprecision(10) << d;
        
	//	cout << setw(20) << i++ << setw(10) << setprecision(8) << "  First = " << f << setprecision(2) << "  Second = " << f << "\n";

cout << setw(20);

switch (i)
{
	case 0: cout << "It's 0" << endl;
     		break;
	case 1: cout << "It's 1" << endl; 
	          break;
	case 2: cout << "It's 2" << endl;
	          break;
    case 3: cout << "It's 3" << endl;
              break;
    case 4: cout << "It's 4" << endl;
              break;
}

    } while (i < 5);
    
    
char c = 'b';

cout << endl << endl << endl;

switch (c)
{
	case 'a':
	{
		cout << "It's a" << endl;
		cout << "Wasn't that fun! " << endl;
		break;
	} 
	
	case 'b': cout << "It's b" << endl; 
	          break;
	case 'c': cout << "It's c" << endl;
	          break;
    case 'd': cout << "It's d" << endl;
              break;
    case 'e': cout << "It's e" << endl;
              break;
}



cout << endl << endl << endl;


if (isdigit(c))
  {
   cout << "\n It's a number";
  }
  else {
  	
   cout << "\n It's NOT a number";
  }
    
}