import java.sql.*;

class Koneksi { 

    public static void main(String args[]) throws  IOException {
        String pass = "",user = "root",database = "db_coba";
        System.out.println("Try To Connection");
        try {
            // pengenalan class koneksi
            Class.forName("com.mysql.jdbc.Driver");


            // perintah koneksi
            Connection connection = DriverManager.getConnection ("jdbc:mysql://localhost/"+database,user,pass);
            System.out.println("You're Connected");
            connection.close();
        } catch (Exception e) {
            System.out.println("Error : " + e);
        }
    }
}