i need to creat a themometer that can show the temperature in degrees C and in Degrees F depending on what the user puts in.

i am very new with clases and i am wondering if i am on the right tracks with this begining code?

Code:
//CLASSES

#include <iostream>
using namespace std;

class C_Themometer
{
private:
float mDegreesC, mDegreesF;

public:
int SetDegreesC(float DegreesC, float DegreesF)
{
mDegreesC = DegreesC;
mDegreesF = DegreesF;

}


void SetDegreesF()
{


}

int GetDegreesC(float& DegreesC, float& DegreesF)
{
cout <<"Please enter a temperature";
return mDegreesC = (9.0/5.0 * mDegreesC) + (32.0);
}


void GetDegreesF()
{


}
};


void main()
{
C_Themometer Deg1, Deg2;
int mDegreesC;
int mDegreesF;


system("pause");
}
if anyone can give me a few pointers that will help then it would be very helpfull.