using System;
class MainClass {
public static void Main() {
bool boolResult = DateTime.IsLeapYear(2004);
Console.WriteLine("DateTime.IsLeapYear(2004) = " + boolResult);
}
}
Development Class
use the DaysInMonth() method to retrieve the number of days in a particular month and year
using System;
class MainClass {
public static void Main() {
int days = DateTime.DaysInMonth(2004, 1);
Console.WriteLine("DateTime.DaysInMonth(2004, 1) = " + days);
}
}
use the Equals() method to compare DateTime instances
using System;
class MainClass {
public static void Main() {
DateTime myDateTime3 = new DateTime(2004, 1, 13);
DateTime myDateTime4 = new DateTime(2004, 1, 14);
bool boolResult = DateTime.Equals(myDateTime3, myDateTime4);
Console.WriteLine("DateTime.Equals(myDateTime3,myDateTime4) = " + boolResult);
boolResult = myDateTime3.Equals(myDateTime4);
Console.WriteLine("myDateTime3.Equals(myDateTime4) is " + boolResult);
}
}
use the overloaded less than operator (<) to compare two DateTime instances
using System;
class MainClass {
public static void Main() {
DateTime myDateTime3 = new DateTime(2004, 1, 13);
DateTime myDateTime4 = new DateTime(2004, 1, 14);
bool boolResult = myDateTime3 < myDateTime4; Console.WriteLine("myDateTime3 < myDateTime4 is " + boolResult); } } [/csharp]
use the Compare() method to compare DateTime instances
using System;
class MainClass {
public static void Main() {
DateTime myDateTime = DateTime.Now;
DateTime myDateTime2 = DateTime.UtcNow;
DateTime myDateTime3 = new DateTime(2004, 1, 13);
DateTime myDateTime4 = new DateTime(2004, 1, 14);
Console.WriteLine("myDateTime3 = " + myDateTime3);
Console.WriteLine("myDateTime4 = " + myDateTime4);
int intResult = DateTime.Compare(myDateTime3, myDateTime4);
Console.WriteLine("DateTime.Compare(myDateTime3,myDateTime4) = " + DateTime.Compare(myDateTime, myDateTime2));
}
}
display the Date, Day, DayOfWeek, DayOfYear,Ticks, and TimeOfDayProperties of myDateTime
using System;
class MainClass {
public static void Main() {
DateTime myDateTime = DateTime.Now;
Console.WriteLine("myDateTime.Date = " + myDateTime.Date);
Console.WriteLine("myDateTime.Day = " + myDateTime.Day);
Console.WriteLine("myDateTime.DayOfWeek = " + myDateTime.DayOfWeek);
Console.WriteLine("myDateTime.DayOfYear = " + myDateTime.DayOfYear);
Console.WriteLine("myDateTime.Ticks = " + myDateTime.Ticks);
Console.WriteLine("myDateTime.TimeOfDay = " + myDateTime.TimeOfDay);
}
}
use the Now and UtcNow properties to get the currrent date and time
using System;
class MainClass {
public static void Main() {
Console.WriteLine("DateTime.Now = " + DateTime.Now);
Console.WriteLine("DateTime.UtcNow = " + DateTime.UtcNow);
DateTime myDateTime = DateTime.Now;
Console.WriteLine("myDateTime = " + myDateTime);
DateTime myDateTime2 = DateTime.UtcNow;
Console.WriteLine("myDateTime = " + myDateTime);
}
}