Akses/Modif Database SQL via Java

package tesdoang;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Arrays;

public class NewClass {

    private static final String DB_DRIVER = "com.mysql.jdbc.Driver";
    private static final String DB_CONNECTION = "jdbc:mysql://localhost:3306/mhs";
    private static final String DB_USER = "root";
    private static final String DB_PASSWORD = "";
    static Connection con;

    public static Connection getDatabaseConnection() {
        Connection con = null;

        try {
            Class.forName(DB_DRIVER);
        } catch (ClassNotFoundException e) {
            System.out.println(e.getMessage());
        }

        try {
            con = DriverManager.getConnection(DB_CONNECTION, DB_USER, DB_PASSWORD);
            return con;
        } catch (SQLException e) {
            System.out.println(e.getMessage());
        }
        return con;
    }

    public static void main (String[] args) throws ClassNotFoundException, SQLException {
            Connection con = null;
        Statement stmt = null;

        try {
            // dapatkan database connection
            con = getDatabaseConnection();

            // membuat object connection
            stmt = con.createStatement();
            // eksekusi insert SQL stetement

            String queryTemp = "Select * from menu;";
            ResultSet r1 = stmt.executeQuery(queryTemp);
            String[] temp = new String[3];
            while (r1.next()) {
                temp[0] = r1.getString("id");
                temp[1] = r1.getString("nama");
                temp[2] = r1.getString("harga");
                System.out.println(Arrays.toString(temp));
            }

        } catch (SQLException e) {
            System.out.println(e.getMessage());
        } finally {
            if (stmt != null) {
                stmt.close();
            }
            if (con != null) {
                con.close();
            }
        }
    }
}