Hexadecimal Conversion.
The conversion into Hexadecimal is the same as mentioned above, except when the remainder is from 10
to 15, you have to replace it by the corresponding Hexa digit, i.e. if the remainder is 14, replace it with the letter 'e' or 'E'.
You have to design and implement another class where it implements the ConvertableNumberSystems.
AlphaBase. The implementation of the xbase() method is only to convert from any non-negative decimal integer into its equivalent one in Hexadecimal (base = 16). When implementing the xbase() method, you would notice that the method must return a string that represents the number in the base 16. This would, for sure to return back (iterative development with backtracking) to change all past implementation to reflect this new modification.
Tip. You may use the the StringBuilder class to accumulate the remainders of the division into the result.
