code

package com.gmail.JyckoSianjaya.LastHolo;

import java.util.HashMap;
import java.util.UUID;

import org.bukkit.Bukkit;
import org.bukkit.OfflinePlayer;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.command.ConsoleCommandSender;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.AsyncPlayerChatEvent;
import org.bukkit.event.player.AsyncPlayerPreLoginEvent;
import org.bukkit.event.player.PlayerChatEvent;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.event.player.PlayerQuitEvent;
import org.bukkit.plugin.Plugin;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scheduler.BukkitRunnable;

import com.gmail.filoghost.holographicdisplays.api.Hologram;
import com.gmail.filoghost.holographicdisplays.api.HologramsAPI;
import com.gmail.filoghost.holographicdisplays.api.line.TextLine;

public class kaain extends JavaPlugin implements Listener {

	HashMap<String,Hologram> cache = new HashMap<>();
	HashMap<String,Integer> live = new HashMap<>();
	HashMap<Player,Boolean> toggle = new HashMap<>();
	double offset = 3.0;
	double firstoffset = 1.5;
	int livetick = 95;
	int maxlength = 20;
	boolean enablelength = true;

  /*


  */

  public Boolean shouldEnable(){
  	return getServer().getPluginManager().isPluginEnabled("HolographicDisplays");
  }
  public void reloadConfig2() {
    	offset = this.getConfig().getDouble("holo-offset");
    	firstoffset = this.getConfig().getDouble("holo-firstoffset");
      livetick = this.getConfig().getInt("holo-livetick");
      enablelength = this.getConfig().getBoolean("enable-max-length");
      maxlength = this.getConfig().getInt("max-length");
  }
  public void sendConsole(String msg){
    ConsoleCommandSender cs = Bukkit.getServer().getConsoleSender();
    cs.sendMessage(org.bukkit.ChatColor.translateAlternateColorCodes('&',msg));
  }
  public void sendmsg(Player player, String msg) {
    player.sendMessage(org.bukkit.ChatColor.translateAlternateColorCodes('&', msg));
  }
	@Override
	public void onEnable() {
		if (!shouldEnable()) {
			sendConsole("&cHolographicDisplays not found! Disabling plugin!");
			getServer().getPluginManager().disablePlugin(this);
			this.setEnabled(false);
      return;
    }
			sendConsole("&aenabled Holographic Chat plugin succesfully!");
			getServer().getPluginManager().registerEvents(this, this);
			getConfig().options().copyDefaults(true);
    	FileConfiguration config = this.getConfig();
    	offset = config.getDouble("holo-offset");
    	firstoffset = config.getDouble("holo-firstoffset");
      livetick = config.getInt("holo-livetick");
			saveConfig();
			new BukkitRunnable() {
				@Override
				public void run() {
					for (String name : cache.keySet()) {
						Player p = Bukkit.getPlayer(name);
						Hologram holo = cache.get(name);
						int clive = live.get(name);
						if (clive < 1) {
							cache.remove(name);
							live.remove(name);
							holo.delete();
						}
						else {
							live.put(name, clive - 1);
							holo.teleport(p.getLocation().add(0.0, offset, 0.0));
						}
					}
				}
			}.runTaskTimer(this, 1L, 1L);
	}
    @EventHandler
    public void OnQuit(PlayerQuitEvent quita) {
    	Player p = quita.getPlayer();
    	String thename = p.getName();
    	if (cache.containsKey(thename)) {
    		Hologram holo = cache.get(thename);
    		holo.delete();
    		cache.remove(thename);
    		live.remove(thename);
    	}
    }
	@Override
	public void onDisable() {
    // TODO : Make more things
		sendConsole("LastHolo disabled");
	}

	@SuppressWarnings("deprecation")
	@EventHandler
	public void playerchat(PlayerChatEvent e) {


    // nah ini
    // SINI
    // SINI
    // baca sini
    // iya
  // nama var nya diganti anjer :'v
    // kan indah

    // ada yang mau gw ubah , biar lebih efisien dan ga makan memory
    // liat hashmap diatas
    // dah

		Player p = e.getPlayer();
    String name = p.getName();
		String msg = e.getMessage();
		if (p.hasPermission("holo.chat")) {
			if (toggle.get(p) == null) {
				toggle.put(p, true);
			}
			if (toggle.get(p) == true) {
			int g = msg.length();
			if (enablelength == true) {
				if (g >= maxlength) {
					msg = msg.substring(0, maxlength) + "..";
				}
			}
			if (p.hasPermission("holo.color")) {
				msg = org.bukkit.ChatColor.translateAlternateColorCodes('&', msg);
			}
					Hologram holo = cache.getOrDefault(name, HologramsAPI.createHologram(this, p.getLocation().add(0.0, firstoffset, 0.0)));
						if(holo.size() > 0) {
							TextLine tl = (TextLine)holo.getLine(0);
							tl.setText(msg);
						}else {
							holo.appendTextLine(msg);
						}
						cache.put(name, holo);
						live.put(name, livetick);
				}
		}
	}
@SuppressWarnings("unlikely-arg-type")
@Override
  public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
  		Player player = null;
    if(sender instanceof Player){
    	player = (Player) sender;
    }
    if (cmd.getName().equalsIgnoreCase("lastholo")) {
    	int length = args.length;
        if (length == 0) {
      	  sendmsg(player, "&e&m------------------------");
      	  sendmsg(player, "     &b&lLast&3&lHolo ");
      	  sendmsg(player, "&f>> &7/lh reload");
      	  sendmsg(player, "&F>> &7/lh toggle");
      	  sendmsg(player, "&e&m------------------------");
      	  return true;
        }

      if(length > 0){
    	  if(args[0].equalsIgnoreCase("reload")){
              if(!player.hasPermission("holo.reload")){
              		sendmsg(player,"No Permission, too handsome.");
             			return true;
              }
              else{
              		sendmsg(player,"Config Reloaded");
              }
            }else{
              sendConsole("Config Reloaded");
            }
                 // keatas
                 //
        		reloadConfig();
        		reloadConfig2();
        }
      if(args[0].equalsIgnoreCase("toggle")) {
    	  if (!player.hasPermission("holo.toggle")) {
    		  sendmsg(player,"&c&lHey! &cCan't do that without permission!");
    		  return true;
    	  }
		  if (toggle.get(player) == null) {
			  toggle.put(player, true);
			  sendmsg(player, "&8[&f&l!&8] &7You're chat will now pop up. (&aON&7)");
			  return true;
	  }
    		  if (toggle.get(player) == false) {
    			  toggle.put(player, true);
    			  sendmsg(player, "&8[&f&l!&8] &7You're chat will now pop up. (&aON&7)");
    			  return true;
    		  }
    		  if (toggle.get(player) == true) {
    			  toggle.put(player,  false);
    			  sendmsg(player, "&8[&f&l!&8] &7You're chat won't pop up anymore. (&cOFF&7)");
    			  return true;
    		  }

      }
      }
	return true;

  }