Class.forName("org.gjt.mm.mysql.Driver");
            con = DriverManager.getConnection(
                    "jdbc:mysql://localhost:3306/" + Db, dbuser, dbpasswd);
            stmt = con.createStatement();

Class.forName("org.gjt.mm.mysql.Driver");
            con = DriverManager.getConnection(
                    "jdbc:mysql://192.168.0.12:3306/" + Db, dbuser, dbpasswd);
            stmt = con.createStatement();

String URL = "jdbc:mysql://192.168.0.12/mydatabase";
String username = "username";
String password = "password";
Connection con = DriverManager.getConnection(URL, username, password);

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;