whatday3.cs

csharp-solution,C#高效编程源码

using System;

enum MonthName 
{
    January,
    February,
    March,
    April,
    May,
    June,
    July,
    August,
    September,
    October,
    November,
    December
}

class WhatDay 
{
	static void Main() 
	{
	    try {
    		Console.Write("Please input a day number between 1 and 365: ");
    		string line = Console.ReadLine();
    		int dayNum = int.Parse(line);

            if (dayNum < 1 || dayNum > 365) {
                throw new ArgumentOutOfRangeException("Day out of Range");
            }
                
            int monthNum = 0;       
            
            foreach (int daysInMonth in DaysInMonths) {
                if (dayNum <= daysInMonth) {
                    break;
                } else {
                    dayNum -= daysInMonth;
                    monthNum++;
                } 
            }
            
            MonthName temp = (MonthName)monthNum;
            string monthName = temp.Format();
            
            Console.WriteLine("{0} {1}", dayNum, monthName);
        }
        catch (Exception caught) {
            Console.WriteLine(caught);    
        }
    }
    
    // Don't modify anything below here
    static System.Collections.ICollection DaysInMonths 
        = new int[12]{ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

	static System.Collections.ICollection DaysInLeapMonths 
        = new int[12]{ 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

}