Code

	ArrayList<String> names = new ArrayList<>();
	HashMap<String,String> Nametags = new HashMap<String,String>();


	@EventHandler
	public void onInteract(PlayerInteractEvent e) {
		Player p = e.getPlayer();

		names.add("§6DerManuLP");
		names.add("§6DerGustavLP");
		names.add("§6lily2525");
		names.add("§6benstone");
		names.add("§6hellshell ");
		names.add("§6mango786");
		names.add("§6Raybeez55");
		names.add("§6bloodzero");
		names.add("§6bloodzero");
		names.add("§6bobppy1");
		names.add("§6cookie10");
		names.add("§6acerkake");


		if(e.getItem().getType() == Material.NAME_TAG) {
			if(e.getAction() == Action.RIGHT_CLICK_AIR) {

				try {

					Random rnd = new Random();
					String name = names.get(rnd.nextInt(names.size()));

					p.setDisplayName(name);
					p.setPlayerListName(name);
					Nametags.put(p.getName(), name);

					p.sendMessage("§7§l[§b§lNickname§7§l] §eDu hast nun ein Nickname! [§c"+ name + "§e]");
					TagAPI.refreshPlayer(p);






				}catch(Exception ex) {

				}
			}
		}




		}
		@EventHandler
		public void NameTag(AsyncPlayerReceiveNameTagEvent e) {
			Player p = e.getNamedPlayer();
			if(Nametags.containsKey(p.getName())) {
				e.setTag(Nametags.get(p.getName()));
			}
	}

}