CoinsAPI (Main)

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;

/**
 * @author VINETOS on 20/09/2015.
 */
public class Main extends JavaPlugin implements Listener {

    private API api;

    @Override
    public void onEnable() {
        getServer().getPluginManager().registerEvents(this, this);
        api = new API("jdbc:mysql://", "bdd.monserveur.fr", "nomDeMaBase", "username", "passeword", "Table");
    }

    @EventHandler
    public void onJoin(PlayerJoinEvent e){
        Player p = e.getPlayer();
        api.createPlayerIfNotExist(p);
        api.addCoins(p, 50);//Ajout des coins (+50)
        api.removeCoins(p, 10);//Suppression de coins (-10)
        int coins = api.getPoints(p);
    }
}