public class YouBuiltItCommand implements CommandExecutor {
    YouBuiltIt plugin = null;
    public YouBuiltItCommand(YouBuiltIt youBuiltIt) {
        plugin=youBuiltIt;
    }

    @Override
    public boolean onCommand(CommandSender sender, Command command, String commandLabel, String[] args) {
        String commandName = command.getName().toLowerCase();

        if (sender instanceof Player) {
            Player player = (Player) sender;
            if (commandName.equals("you")) {
                if (args.length == 0) {
                    player.sendMessage(ChatColor.RED + "Add on or off");
                }else if(args.length == 1){
                    System.out.println("arg[0]:"+args[0]);
                    if(args[0].toLowerCase().equals("on")){
                        plugin.enableFor(player);
                    }else if(args[0].toLowerCase().equals("off")){
                        plugin.disableFor(player);
                    }
                }

            }

        }
        return true;
    }

}