Change private field via method - CSharp Custom Type

Description

Change private field via method

Demo Code

using System;//from  w  w  w .  j  av a2 s . c  o m
class Train
{
   private uint distance = 0;
   public void MoveBySteam(uint addDistance)
   {
      Console.WriteLine("Moving {0} kilometers by steam", addDistance);
      distance += addDistance;
   }
   public void MoveByElectricity(uint addDistance)
   {
      Console.WriteLine("Moving {0} kilometer by electricy", addDistance);
      distance += addDistance;
   }
   public void TestingDistance()
   {
      Console.WriteLine("Testing. distance instance variable: {0}", distance);
   }
}
class Tester
{
   public static void Main()
   {
      Train orientExpress = new Train();
      orientExpress.MoveBySteam(100);
      orientExpress.MoveByElectricity(200);
      orientExpress.TestingDistance();
   }
}

Result

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