write jdbc program to test java connection

import java.sql.*;

public class TestJdbc {

    public static void main(String[] args) {

        Connection conn = null;

        String url = "jdbc:mysql://localhost:3306/";        

        String driver = "com.mysql.jdbc.Driver";

        String dbName = "cse1", userName = "root", 

            password = "vamsi";      

        try {

            Class.forName(driver).newInstance();

            conn = DriverManager.getConnection(url+dbName, userName, password);

            System.out.println("Connected to the database");

            conn.close();

            System.out.println("Disconnected from database");

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

}