Beginning C# 3.0

9.4. The clsDates Design

Now let's use some of our design ideas to implement the design for clsDates. The code for clsDates is shown in Listing 9-4.

Example 9-4. Listing 9-4

using System; using System.Collections.Generic; using System.Text; public class clsDates { // =============== symbolic constants ================== // =============== static members ====================== private static int[] daysInMonth = { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; // =============== instance members ===================== private int day; private int month; private int year; private int leapYear; private DateTime current; // =============== constructor(s) ====================== public clsDates() { current = DateTime.Now; // Sets DateTime to right now } // =============== property methods ===================== // =============== helper methods ======================= // =============== general methods ====================== /***** * Purpose: To determine if the year is a leap year. Algorithm * taken from C Programmer's Toolkit, Purdum, Que Corp., * 1993, p. 258. * * Parameter list: * int year the year under consideration * * Return value: * int 1 if a leap year, 0 otherwise *****/ public int getLeapYear(int year) { if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0) return 1; // It is a leap year else return 0; // Nope. } /***** * Purpose: To determine the date for Easter given a year. Algorithm * taken from C Programmer's Toolkit, Purdum, Que Corp., * 1993, p. 267. * * Parameter ...