private void setprefix(Player player, String prefix) {
File file =
fileManager.loadFile(
plugin.getDataFolder().toString() + "\\players",
player.getUniqueId().toString() + ".json");
String json = null;
try {
json = jsonManager.getJson(file);
} catch (IOException e) {
e.printStackTrace();
}
JsonObject playerdata = jsonManager.createJsonObject(json);
playerdata.getAsJsonObject("Player").addProperty("prefix", prefix);
String json1 = jsonManager.toJson(playerdata);
player.setDisplayName(coloring(prefix + player.getName()));
jsonManager.writeJson(file, json1);
}
