13. 1. 6. Create a DateTime instance, specifying the year, month, day, hour, minute, second, and millisecond
using System; class MainClass { public static void DisplayDateTime ( string name, DateTime myDateTime ) { Console.WriteLine ( name + " = " + myDateTime ) ; Console.WriteLine ( name + ".Year = " + myDateTime.Year ) ; Console.WriteLine ( name + ".Month = " + myDateTime.Month ) ; Console.WriteLine ( name + ".Day = " + myDateTime.Day ) ; Console.WriteLine ( name + ".Hour = " + myDateTime.Hour ) ; Console.WriteLine ( name + ".Minute = " + myDateTime.Minute ) ; Console.WriteLine ( name + ".Second = " + myDateTime.Second ) ; Console.WriteLine ( name + ".Millisecond = " + myDateTime.Millisecond ) ; Console.WriteLine ( name + ".Ticks = " + myDateTime.Ticks ) ; } public static void Main () { int hour = 23 ; int minute = 30 ; int second = 12 ; int millisecond = 5 ; int year = 2004 ; int month = 5 ; int day = 12 ; DateTime myDateTime = new DateTime ( year, month, day, hour, minute, second, millisecond ) ; DisplayDateTime ( "myDateTime" , myDateTime ) ; } }
myDateTime = 12/05/2004 11:30:12 PM
myDateTime.Year = 2004
myDateTime.Month = 5
myDateTime.Day = 12
myDateTime.Hour = 23
myDateTime.Minute = 30
myDateTime.Second = 12
myDateTime.Millisecond = 5
myDateTime.Ticks = 632200014120050000
13. 1. DateTime 13. 1. 1. Creating specific date/times: year, month, day, hour, minute, second 13. 1. 2. Create a DateTime with the current date and time 13. 1. 3. Create a TimeSpan representing 1 week and subtract from a DataTime 13. 1. 4. Add seconds to current time 13. 1. 5. Create a DateTime instance, specifying the year, month, and day 13. 1. 6. Create a DateTime instance, specifying the year, month, day, hour, minute, second, and millisecond 13. 1. 7. Create a DateTime instance, specifying the year, month, day, and JulianCalendar object 13. 1. 8. Create a DateTime instance, specifying the number of ticks 13. 1. 9. Create a TimeSpan instance, and add it to DateTime 13. 1. 10. Use the Now and UtcNow properties to get the currrent date and time 13. 1. 11. Display the Date, Day, DayOfWeek, DayOfYear, Ticks, and TimeOfDayProperties of DateTime 13. 1. 12. Use the Compare() method to compare DateTime instances 13. 1. 13. Use the overloaded less than operator (<) to compare two DateTime instances 13. 1. 14. Use the Equals() method to compare DateTime instances 13. 1. 15. Use the DaysInMonth() method to retrieve the number of days in a particular month and year 13. 1. 16. Use the IsLeapYear() method to determine if a particular year is a leap year 13. 1. 17. Use the overloaded addition operator (+) to add a TimeSpan to a DateTime 13. 1. 18. Use the overloaded subtraction operator (-) to subtract a TimeSpan from a DateTime 13. 1. 19. Use the AddYears(), AddMonths(), AddDays(), AddMinutes(), and AddSeconds() methods to add periods to a DateTime 13. 1. 20. Use the ToFileTime() method to convert a DateTime to an operating system file timestamp 13. 1. 21. Use the FromFileTime() method to convertan operating system file timestamp to a DateTime
