static void Main(string[] args)
{
// create objects
Location loc = new Location { Description = "Head Office", City = "Glasgow" };
Employee emp1 = new Employee("Michael", "michael", loc, "1234");
Employee emp2 = new Employee("Susan", "susan", loc, "4321");
Employee emp3 = new Employee();
TimeSheet ts = new TimeSheet();
// use properties
string uname = emp2.Username;
Console.WriteLine("Email address for Susan is {0}", emp2.Email);
emp2.PhoneNumber = "5678";
TimeSheet.MaxEntries = 100;
// send messages (call methods)
emp1.RecordOvertime(ts, 5, true); // note that as a result of this, emp1 sends a message to ts
int overTime = emp1.TotalOvertime(ts);
Console.WriteLine("total hours for Michael: {0}", overTime);
TimeSheet.IncreaseMaxEntriesBy(50);
// wait for key press before ending
Console.ReadLine();
double angle = Math.PI;
double result = Math.Sin(angle);
}