Test-Plugin

package me.maxl.test;

import java.util.ArrayList;
import java.util.Random;

import org.bukkit.Bukkit;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class test extends JavaPlugin implements CommandExecutor, Listener{

	public ArrayList<String> onlineplayers = new ArrayList<String>();

	@Override
	public void onEnable() {
		super.onEnable();
		System.out.println("Plugin gestartet");

		getCommand("jetzt").setExecutor(this);

		Bukkit.getPluginManager().registerEvents(this, this);
	}

	@Override
	public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
		if(!(sender instanceof Player)){
			sender.sendMessage("Error");
		}else{
			Player p = (Player)sender;
			if(cmd.getName().equalsIgnoreCase("jetzt")){
				p.getNearbyEntities(15.0D, 15.0D, 15.0D);
				Random r = new Random();
				String result = null;
				result = onlineplayers.get(r.nextInt(onlineplayers.size()));

				if(result != p.getName()){
					p.sendMessage(result);
				}

			}
		}
		return false;
	}

	@EventHandler
	public void onJoin(PlayerJoinEvent e){
		Player p = e.getPlayer();
		onlineplayers.add(p.getName());
	}


}