Example

package de.janplaysmc.mclobby;

import java.util.ArrayList;
import java.util.Locale;

import org.bukkit.Bukkit;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.AsyncPlayerChatEvent;

public class ChatListener implements Listener {

    @EventHandler
    public void onChat(AsyncPlayerChatEvent e)
    {
        ArrayList<String> bw = new ArrayList<String>();
        bw.add("ez");
        bw.add("hure");
        bw.add("penis");
        bw.add("scheiß");
        bw.add("scheiss");
        bw.add("fick");
        bw.add("fuck");
        bw.add("spast");
        bw.add("arsch");
        bw.add("wix");
        bw.add("mudd");
        bw.add("kack");
        bw.add("low");
        boolean isbw = false;
        boolean ispr = false;
        if(e.getMessage().contains("http"))ispr=true;
        if(e.getMessage().contains("."))ispr=true;
        if(e.getMessage().contains("www"))ispr=true;
        if(e.getMessage().contains("nitrado"))ispr=true;
        if(e.getMessage().contains("minecraft gs"))ispr=true;
        if(e.getMessage().contains("minecraft to"))ispr=true;
        for(String s : bw)
        {
            if(e.getMessage().toLowerCase(Locale.GERMAN).contains(s))isbw=true;
        }
        int rank = GroupManager.getRank(e.getPlayer());
        String pre = GroupManager.getRankColor(rank);
        if(rank>2)pre=GroupManager.getRankColor(rank)+GroupManager.getRankPrefix(rank)+" §8| "+GroupManager.getRankColor(rank);
        if(rank<6)
        {
            if(!ispr)
            {
                if(!isbw)
                {
                    Bukkit.broadcastMessage(pre+e.getPlayer().getName() + " §8● §7"+parser(e.getMessage()));
                }else{
                    e.getPlayer().sendMessage("§8[§6MINECITY§8] §cAchte auf deine Wortwahl§6!");
                }
            }else{
                e.getPlayer().sendMessage("§8[§6MINECITY§8] §cLinks/IPs versenden ist verboten§6!");
            }
        }else{
            Bukkit.broadcastMessage(pre + e.getPlayer().getName() + " §8● §7"+parser(e.getMessage()));
        }
        e.setCancelled(true);
    }

    private String parser(String s)
    {
        String out = s.replace("<3", "§c♥§r");
        out = out.replace("(heart)", "§c♥§r");
        out = out.replace("(tone)", "§5♫§r");
        out = out.replace("(true)", "§a✔§r");
        out = out.replace("(false)", "§c✘§r");
        out = out.replace("(star)", "§e★§r");
        out = out.replace("(sun)", "§e☀§r");
        out = out.replace("(radio)", "§e☢§r");
        out = out.replace("(phone)", "§7☎§r");
        out = out.replace("(snowman)", "§f☃§r");
        out = out.replace("(flower)", "§c✿§r");
        out = out.replace("(smile)", "§6ツ§r");
        out = out.replace("(male)", "§3♂§r");
        out = out.replace("(female)", "§d♀§r");
        return out;
    }

}