//Visual Basic 2010 Inleiding in Functies Procedures en Functies
public class Exercise2Solution {
    void Main() {
        Console.WriteLine(this.IsLeapYear(1900));
        Console.WriteLine(this.IsLeapYear(1996));
        Console.WriteLine(this.IsLeapYear(2000));
        Console.WriteLine();
        Console.WriteLine(this.GetDaysFebruary(1900));
        Console.WriteLine(this.GetDaysFebruary(1996));
        Console.WriteLine(this.GetDaysFebruary(2000));
        Console.WriteLine();
        Console.WriteLine(this.GetDays(1900, 2));
        Console.WriteLine(this.GetDays(1996, 2));
        Console.WriteLine(this.GetDays(2000, 2));
        Console.WriteLine();
        Console.WriteLine(this.GetDays(1900, 3));
        Console.WriteLine(this.GetDays(1996, 3));
        Console.WriteLine(this.GetDays(2000, 3));
        Console.ReadLine();
    }
    void IsLeapYear(int year) {
        if (((((year % 4) 
                    == 0) 
                    && ((year % 100) 
                    != 0)) 
                    || ((year % 400) 
                    == 0))) {
            IsLeapYear = true;
        }
    }
    void GetDaysFebruary(int year) {
        GetDaysFebruary = 28;
        if (this.IsLeapYear(year)) {
            GetDaysFebruary = 29;
        }
    }
    void GetDays(int year, int month) {
        if ((month == 2)) {
            GetDays = this.GetDaysFebruary(year);
        }
        else {
            int[] days;
            GetDays = this.days((month - 1));
        }
    }
}
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