public CommandExecutor(TicketCatalog ticketCatalog)
{
this.ticketCatalog = ticketCatalog;
}
public TicketCatalogEngine(TicketCatalog ticketCatalog, IUserInterface userInterface)
{
this.ticketCatalog = ticketCatalog;
this.userInterface = userInterface;
this.commandExecutor = new CommandExecutor(this.ticketCatalog);
}