try {

        Class.forName("org.postgresql.Driver");

        } catch (ClassNotFoundException e) {
            e.printStackTrace();

        }

        Connection connection = null;

        try {

        connection = DriverManager.getConnection("jdbc:postgresql://localhost:5432/postgres", "postgres", "admin");

        } catch (SQLException e) {

        System.out.println("Connection Failed! Check output console");
        e.printStackTrace();
        return;

        }

        System.out.println("connected");

    }