#include <iostream>
#include <string>
using namespace std;


class NegativeNumber
{
public: 
  NegativeNumber() {};
  NegativeNumber(string theMessage) : message(theMessage) {};
  string getMessage() const {return message;}
private:
  string message;
};


class DivideByZero
{};
main()
{
  int i;

  for (i=0; i<10; i++) {
    try
      {
        if (i % 4 == 0) throw NegativeNumber("A negative number error");
        else if (i % 2 == 0) throw DivideByZero();
        else throw 0.5;
      }
    catch (NegativeNumber e) {
      cout << "get NegativeNumber exception no: " << e.getMessage() << endl;
    }
    catch (DivideByZero) {
      cout << "get DivideByZero exception\n";
    } 
    catch(...) {
      cout << "get other exception\n";
    }
  }
}