Stocks Class

package me.Austin.Stocks;

import java.io.File;
import java.io.InputStream;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.logging.Logger;

import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.configuration.file.YamlConfiguration;
import org.bukkit.plugin.java.JavaPlugin;

import com.mysql.jdbc.Connection;
import com.mysql.jdbc.Statement;

public class Stocks extends JavaPlugin {

	private static Stocks instance;
	Logger logger = this.getLogger();
	static final String DB_NAME = "jdbc:mysql://localhost:3306/minecraft";
	static final String USER = "root";
	static final String PASS = "password";
	Connection conn;
	Statement s;

	public void onEnable() {
		logger.info("Stock market is enabling for the server");
		saveConfig();
		savemarketYML();

		try {
			Class.forName("com.mysql.jdbc.Driver"); // Gets the driver class
			getLogger().info("About to connect to database"); // These are just
																// for debugging
																// purposes.

			conn = (Connection) DriverManager.getConnection(DB_NAME, USER, PASS); // Gets
																					// a
																					// connection
																					// to
																					// the
																					// database
																					// using
																					// the
																					// details
																					// you
																					// provided.

			getLogger().info("Successfully connected.");

			getLogger().info("About to create a statement");

			s = (Statement) conn.createStatement(); // Creates a statement. You
													// can execute queries on
													// this.

			getLogger().info("Successfully created statement.");
		} catch (Exception ex) {
			ex.printStackTrace();
		}

	}

	private FileConfiguration marketYML = null;
	private File marketYMLFile = null;

	public void reloadMarketYMLFile() {
		if (marketYMLFile == null) {
			marketYMLFile = new File(getDataFolder(), "Market.yml");
		}
		marketYML = YamlConfiguration.loadConfiguration(marketYMLFile);

		InputStream defConfigStream = this.getResource("Market.yml");
		if (defConfigStream != null) {
			@SuppressWarnings("deprecation")
			YamlConfiguration defConfig = YamlConfiguration.loadConfiguration(defConfigStream);
			marketYML.setDefaults(defConfig);
		}
	}

	private void savemarketYML() {
		if (marketYML == null) {
			this.reloadMarketYMLFile();
		}
	}

	public FileConfiguration getMarketYML() {
		if (marketYML == null) {
			reloadMarketYMLFile();
		}
		return marketYML;
	}

	public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args) {
		if (commandLabel.equalsIgnoreCase("open")) {
			try {
				openMarket.openMarket(getConfig().getString("openMarketMSG"));
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		if (commandLabel.equalsIgnoreCase("buy")) {
			if (args.length != 0) {
				try {
					int number = Integer.parseInt(args[1]);
					buyStock.buy(args[0], number);
				} catch (SQLException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			} else {
				sender.sendMessage("Error");
			}
		}
		return false;
	}

	public static Stocks get() {
		return instance;
	}

}