using System;
using System.Globalization;
class MainClass {
public static void Main() {
// Create some date/time objects
DateTime dt = new DateTime();
DateTime dt1 = new DateTime(2001, 12, 31);
DateTime dt2 = new DateTime(2000, 12, 31, 23, 59, 59);
if (dt2 < dt1)
Console.WriteLine("Dt2 < Dt1");
else
if (dt2 == dt1)
Console.WriteLine("Dt2 == Dt1");
else
Console.WriteLine("Dt2 > Dt1");
}
}
Development Class
Constructors of DateTime
using System;
using System.Globalization;
class MainClass {
public static void Main() {
DateTime dt = new DateTime();
DateTime dt1 = new DateTime(2001, 12, 31);
DateTime dt2 = new DateTime(2000, 12, 31, 23, 59, 59);
// Print them out as strings
Console.WriteLine("DT as string: {0}", dt.ToString());
Console.WriteLine("DT1 as string: {0}", dt1.ToString());
Console.WriteLine("DT2 as string: {0}", dt2.ToString());
}
}
Add TimeSpan to DateTime
using System;
using System.Globalization;
class MainClass {
public static void Main() {
DateTime dt = new DateTime();
DateTime dt1 = new DateTime(2001, 12, 31);
DateTime dt2 = new DateTime(2000, 12, 31, 23, 59, 59);
TimeSpan year = new TimeSpan(365 * TimeSpan.TicksPerDay);
for (int i = 0; i < 10; ++i) dt += year; Console.WriteLine("DT as string: {0}", dt.ToString()); } } [/csharp]
Output DateTime object
using System;
using System.Globalization;
public class DatesApp {
public static void Main(string[] args) {
DateTime dt = DateTime.Now;
Console.WriteLine(dt);
Console.WriteLine("date = {0}, time = {1}
",dt.Date, dt.TimeOfDay);
}
}
Look at the min and max date/time values
using System;
using System.Globalization;
class MainClass {
public static void Main() {
Console.WriteLine("Min Date: {0}", DateTime.MinValue.ToString());
Console.WriteLine("Max Date: {0}", DateTime.MaxValue.ToString());
}
}
Do some leap year checks
using System;
using System.Globalization;
class MainClass {
public static void Main() {
//
int[] years = { 1984, 2000, 1999, 2002 };
for (int i = 0; i < years.Length; ++i) {
if (DateTime.IsLeapYear(years[i]))
Console.WriteLine("Year {0} is a leap year", years[i]);
else
Console.WriteLine("Year {0} is NOT a leap year", years[i]);
}
}
}
[/csharp]
What day of the month is this?
using System;
using System.Collections.Generic;
using System.Text;
class Program {
static void Main(string[] args) {
DateTime dt = new DateTime(2004, 10, 17);
Console.WriteLine("The day of {0} is {1}", dt.Date, dt.DayOfWeek);
}
}