Roman Num Convert

#include <iostream>
#include <string>

using namespace std;

class RomanType
{
    string romanNumerals;
    int decimalValue;

public:

    void setNumerals(string);
    string getNumerals();
    void convertNumerals();
    void setValue(int);
    int getValue();
    void print();

};

void RomanType::setNumerals(string rNum)
{

    romanNumerals = rNum;

}
string RomanType::getNumerals()
{

    return romanNumerals;

}

void RomanType::convertNumerals()
{
    decimalValue = 0;

    for(int i = 0; i < getNumerals().size(); i++)
    {

        switch(getNumerals()[i])
        {

        case 'M':

            RomanType::setValue(1000);

            break;

        case 'D':

            RomanType::setValue(500);

            break;

        case 'C':

            RomanType::setValue(100);

            break;

        case 'L':

            RomanType::setValue(50);

            break;

        case 'X':

            RomanType::setValue(10);

            break;

        case 'V':

            RomanType::setValue(5);

            break;

        case 'I':

            RomanType::setValue(1);

            break;

        }

    }

}

void RomanType::setValue(int dValue)
{

    decimalValue += dValue;

}

int RomanType::getValue()
{

    return decimalValue;

}

void RomanType::print()
{

    int userDecision;

    cout << "[1] To Print Roman | [2] To Print Decimal Value: ";
    cin >> userDecision;
    switch (userDecision)
    {

    case 1:

        cout << "Roman Numerals Entered: \t" << getNumerals() << endl;

        break;

    case 2:

        cout << "Value Of Roman Numerals Entered: \t" << RomanType::getValue() << endl;

    }
}

int main()
{
    string userInput;

    cout << "Enter Your Roman Numerals: " << endl;
    cin >> userInput;

    RomanType rType;
    rType.setNumerals(userInput);
    rType.convertNumerals();
    rType.print();

}