static public StaffAction Logged(StaffLoginId sta)
{
if (_obj == null)
{
_obj = new StaffAction(sta);
}
return(_obj);
}
static void Main(string[] args)
{
StaffLoginId sl = new StaffLoginId();
sl.Username = "******";
Staff s = new Staff();
s.Name = "sana";
StaffAction sa = StaffAction.Logged(sl);
Console.WriteLine(sa.getUsername());
Console.ReadLine();
}