C#

int counter = 0;

void Timer()
{
   if(counter == (60*60)) {// 60*60 being 1 hour
      its been a hour, omg!
      counter = 0;
   }
}

DateTime now = DateTime.Now;
DateTime start = DateTime.Now;
	
void Timer()
{			
   TimeSpan huh = start-now;

   if(huh.Hours >= 1) {
      Its been an hour, again!
      start = DateTime.Now;
   }
}

public class MMap< K,V > where K:struct
    {
        public void Add(Nullable < K > key,V value)// the same for other methods
        {
            
        }
    }

hspc wrote:

where K:struct

PIEBALDconsult wrote:

where K:class