Solved Level Settings

I've made a level system for my server that uses UUID's for it. But I am confused on how to convert a UUID to the players name so when a person does /test level xanmanxan 1 it set's xanmanxan's level to level 1. but then I want it to save to the config as a UUID

Code (Text):

            if (args[0].equalsIgnoreCase("level")) {
                if (args.length == 0) {
                    p.sendMessage("§b§lPvp§8 »§7 Please enter a integer level");
                    return true;
                }
                Player target = Bukkit.getServer().getPlayer(args[0]);
                if (target == null) {
                p.sendMessage("§b§lPvp§8 »§7 Player is §coffline§7, player is required to be §aonline§7!");
               return true;
            }
                   plugin.getConfig().set("PlayerData."+ p.getUniqueId() + ".level", args[1]);
        }

 

Problem Solved -----------