Hi java/ c++ geeks out there,
I need some help on below problem (can use java or c++):

Finish the returnTotalDays method in the CalDate class given below.
returnTotalDays returns one of the following.

I.  the number of days in the given month if (year>0 and month>=1 and month<=12);
II.  the number of days in the given year if year>0 and month is 0; or
III. -1 if year<=0 or the month is not in the range of 0..12

public class CalDate {
public static int returnTotalDays(int year, int month) {
…
}
}

Thank you for your help!!

import java.util.Calendar;