Bukkit Scoreboard

package com.DidactCraft.Core;

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

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.GameMode;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.PlayerDeathEvent;
import org.bukkit.event.player.AsyncPlayerChatEvent;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.inventory.PlayerInventory;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scoreboard.DisplaySlot;
import org.bukkit.scoreboard.Objective;
import org.bukkit.scoreboard.Score;
import org.bukkit.scoreboard.Scoreboard;
import org.bukkit.scoreboard.ScoreboardManager;


public class Core extends JavaPlugin implements Listener {

	@EventHandler
	public void onPlayerJoin(PlayerJoinEvent e) {

		Player p = e.getPlayer();
		String uuid = p.getUniqueId().toString();
		p.sendMessage(ChatColor.translateAlternateColorCodes('&', "&f&LWelcome to the &c&lBattlefield"));
		Scoreboard();

		if(!getConfig().contains("Players." + uuid)) {
			getConfig().set("Players." + uuid + ".Kills", 0);
			getConfig().set("Players." + uuid + ".Deaths", 0);
			saveConfig();

		}

	}

	@EventHandler
	public void onPlayerDeath(PlayerDeathEvent e) {

		Player p = e.getEntity();
		if(p.getKiller() instanceof Player) {

			Player k = p.getKiller();
			String pUUid = p.getUniqueId().toString();
			String kUUid = k.getUniqueId().toString();
			int kills = getConfig().getInt("Players." + kUUid + ".Kills");
			int deaths = getConfig().getInt("Players." + pUUid + ".Deaths");

			getConfig().set("Players." + kUUid + ".Kills", kills +1);
			getConfig().set("Players." + pUUid + ".Deaths", deaths +1);

			p.sendMessage(color("&8[&c&lDidact&f&lCraft&8] &fYou have died to >&c " + e.getEntity().getKiller().getDisplayName()));
			k.sendMessage(color("&8[&c&lDidact&f&lCraft&8] &fYou have killed >&c " + e.getEntity().getDisplayName()));
		}


	}

	public String color(String msg) {

		return ChatColor.translateAlternateColorCodes('&', msg);

	}


	Scoreboard board;

	public void onEnable() {
		getLogger().info("[DidactCore] Plugin has been enabled!");
		Bukkit.getServer().getPluginManager().registerEvents(this, this);

	}


	@SuppressWarnings({ "deprecation" })
	public void Scoreboard() {
		ScoreboardManager manager = Bukkit.getScoreboardManager();
		board = manager.getNewScoreboard();
		Objective objective = board.registerNewObjective("test1", "test2");
		objective.setDisplayName(ChatColor.translateAlternateColorCodes('&', "&c&lDidact&f&lCraft.com"));
		objective.setDisplaySlot(DisplaySlot.SIDEBAR);


		for(Player online : Bukkit.getOnlinePlayers()){
			  online.setScoreboard(board);
			}

		UUID uuid = Bukkit.getServer().getPlayer(getName()).getUniqueId();
		int kills = getConfig().getInt("Players." + uuid + ".Kills");


		Score score = objective.getScore(Bukkit.getOfflinePlayer(ChatColor.translateAlternateColorCodes('&', "&f&lStats")));
		score.setScore(15);
		Score score1 = objective.getScore(Bukkit.getOfflinePlayer(ChatColor.translateAlternateColorCodes('&', "&8-----")));
		score1.setScore(14);
		Score score2 = objective.getScore(Bukkit.getOfflinePlayer(ChatColor.translateAlternateColorCodes('&', "&cKills")));
		score2.setScore(13);
		Score score3 = objective.getScore(Bukkit.getOfflinePlayer(ChatColor.translateAlternateColorCodes('&', "&f" + kills)));
		score3.setScore(12);


	}






}