import org.bukkit.Bukkit;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.AsyncPlayerChatEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class Main extends JavaPlugin implements Listener{

    @Override
    public void onEnable() {
        Bukkit.getServer().getPluginManager().registerEvents(this, this);

    }

    @Override
    public void onDisable() {

    }

    @EventHandler
    public void onChat(AsyncPlayerChatEvent e) {
        Player p = e.getPlayer();

        if (e.getMessage().toLowerCase().contains("fuck")) {
            p.kickPlayer("No");
            Bukkit.broadcastMessage(e.getMessage());
        }
    }
}