Implement add operation with operator overload - CSharp Custom Type

CSharp examples for Custom Type:Operator Overloading

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Description

Implement add operation with operator overload

Demo Code

using System;/*  w  w w  . ja  v a 2  s  .c o  m*/
class TimeSpan
{
   private uint totalSeconds;
   private const uint SecondsInHour = 3600;
   private const uint SecondsInMinute = 60;
   public TimeSpan()
   {
      totalSeconds = 0;
   }
   public TimeSpan(uint initialHours, uint initialMinutes, uint initialSeconds)
   {
      totalSeconds = initialHours * SecondsInHour +
      initialMinutes * SecondsInMinute + initialSeconds;
   }
   public uint Seconds
   {
      get
      {
         return totalSeconds;
      }
      set
      {
         totalSeconds = value;
      }
   }
   public void PrintHourMinSec()
   {
      uint hours;
      uint minutes;
      uint seconds;
      hours = totalSeconds / SecondsInHour;
      minutes = (totalSeconds % SecondsInHour) / SecondsInMinute;
      seconds = (totalSeconds % SecondsInHour) % SecondsInMinute;
      Console.WriteLine("{0} Hours  {1} Minutes  {2} Seconds",
      hours, minutes, seconds);
   }
   public static TimeSpan operator+ (TimeSpan timeSpan1, TimeSpan timeSpan2)
   {
      TimeSpan sumTimeSpan = new TimeSpan();
      sumTimeSpan.Seconds = timeSpan1.Seconds + timeSpan2.Seconds;
      return sumTimeSpan;
   }
   public static TimeSpan operator++ (TimeSpan timeSpan1)
   {
      TimeSpan timeSpanIncremented = new TimeSpan();
      timeSpanIncremented.Seconds = timeSpan1.Seconds + 1;
      return timeSpanIncremented;
   }
   public static bool operator> (TimeSpan timeSpan1, TimeSpan timeSpan2)
   {
      return (timeSpan1.Seconds > timeSpan2.Seconds);
   }
   public static bool operator< (TimeSpan timeSpan1, TimeSpan timeSpan2)
   {
      return (timeSpan1.Seconds < timeSpan2.Seconds);
   }
   public static bool operator== (TimeSpan timeSpan1, TimeSpan timeSpan2)
   {
      return (timeSpan1.Seconds == timeSpan2.Seconds);
   }
   public static bool operator!= (TimeSpan timeSpan1, TimeSpan timeSpan2)
   {
      return (timeSpan1.Seconds != timeSpan2.Seconds);
   }
}
class TimeSpanTest
{
   public static void Main()
   {
      TimeSpan someTime;
      TimeSpan totalTime = new TimeSpan();
      TimeSpan myTime = new TimeSpan(2,40,45);
      TimeSpan yourTime = new TimeSpan(1,20,30);
      totalTime += yourTime;
      totalTime += myTime;
      Console.Write("Your time:       ");
      yourTime.PrintHourMinSec();
      Console.Write("My time:         ");
      myTime.PrintHourMinSec();
      Console.Write("Total race time: ");
      totalTime.PrintHourMinSec();
      if (myTime > yourTime)
         Console.WriteLine("\nI spent more time than you did");
      else
         Console.WriteLine("\nYou spent more time than I did");
      myTime++;
      ++myTime;
      Console.Write("\nMy time after two increments: ");
      myTime.PrintHourMinSec();
      someTime = new TimeSpan(1,20,30);
      if (yourTime == someTime)
            Console.WriteLine("\nSpan of someTime is equal to span of yourTime");
      else
            Console.WriteLine("\nSpan of someTime is NOT equal to span of yourTime");
   }
}

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