Wednesday, October 21, 2009

C Recommended Books

Title:The C Programming Language ANSI C Version
Author:Kernighan & Ritchie
Publisher:Prentice Hall Software Series

Comment:Ideal reference book and goes well beyond the level of this course. It is expensive but the serious C programmer will kick themself if they don't buy this book.

Title:ANSI C - Made Easy
Author:Herbert Schildt
Publisher:Osborne McGraw-Hill

Title:Learning to Program in C
Author:N. Kantaris
Publisher: Babani
Comment:A good cheap beginners guide.

Title:Illustrating ANSI C
Author:Donald Alcock
Publisher:Cambridge University Press
Comment:A good book for the mathematically inclined.

Title:C - The Complete Reference
Author:Herbert Schildt
Publisher:Osborne McGraw-Hill

Title:Numerical Recipies in C
Author:W.H.Press, et al
Comment:An advanced level book with, as the name implies, ready-made solutions to your programming problems.

Saturday, October 10, 2009

Monday, October 5, 2009

JAVA to Microsoft Access Connection

(Using the JDBC-ODBC bridge)
A video tutorial is also available Click here to watch
ODBC can be used to connect on any databases though processing is slow... but it would still be very helpful, and that's what were gonna use to connect a JAVA Program to an MS Access Database.
We'll be using Northwind Database, a sample database made by Microsoft Corporation for learning purposes. A database of this is also available in SQL server 2000. Click on the link to download the mdb File:

1. Configure the ODBC Settings
a. Go to Control Pane, then Choose Administrative Tools >> Datasources(ODBC)

b. In the ODBC Dialog box, choose the System DSN tab, then click the [Add] button.
c. A Dialog box appears, choose Microsoft Access Driver (*.mdb)

(Extension name Depends on what version of MS access you are using, in this article, we'll refer to Microsoft Access 2000)
Then choose [finish].

c. Another Dialog box will open. Fill up the Data Source name with the name you want. This will be used on Step # 2
(In this example, we will be naming this NWIND for the sample source code). Then on the Database Panel, click [Select] and browse for your database file.
Choose Driver

d. Click the OK Button and you will see that your database has been added in the System Data Sources List.

2. The Source Code

Here's a sample code I got from the book, Thinking in JAVA by Bruce Eckel. I've modified some of its parts so that it will work on our sample database, Northwind.
// Looks up email addresses in a
// local database using JDBC.
import java.sql.*;

public class JLookup
public static void main(String[] args)
throws ClassNotFoundException {
String dbUrl = "jdbc:odbc:NWIND";
String user = "";
String password = "";

// Load the driver (registers itself)
Connection c = DriverManager.getConnection(
dbUrl, user, password);
Statement s = c.createStatement();
// SQL code:
ResultSet r =
"SELECT * " +
"FROM Products");

while( {
// Capitalization doesn't matter:
r.getString("ProductID") + " " +
s.close(); // Also closes ResultSet
catch(SQLException se)
*From Thinking in JAVA,

Another code that makes use on the JOptionPane. Some parts of it are simplified (if you find the Objects and Indentations a fuss on the previous example)
By Mykell Dick Soria

import javax.swing.*;
import java.sql.*;
public class ConnectionTask

private JTextArea txtView;
private JScrollPane jsp;

public ConnectionTask(){
txtView = new JTextArea(20,30);
jsp = new JScrollPane(txtView);


Connection jereme = DriverManager.getConnection("jdbc:odbc:NWIND","","");
Statement jer = jereme.createStatement();

jer.executeQuery("SELECT * FROM Customers");
ResultSet je = jer.getResultSet();

txtView.append(je.getString(1) + "\n" + je.getString(2) + "\n" + je.getString(3) + "\n");
JOptionPane.showMessageDialog(null, jsp, "Database Products", JOptionPane.INFORMATION_MESSAGE);
}catch(Throwable exp){


public static void main(String[] args){
ConnectionTask app = new ConnectionTask();

Well, you'll know if you're doing right if your program displays the content you selected. The catch statement will display any errors about the connection

Exceptions Used In the Programs:
1. ClassNotFoundException
2 . SQLException
3. Throwable (if you've included this, you don't need to bother putting the first two)
4. IOException - though not in the example, according to Mr. Soria, it can also be substituted for SQLException.

enjoy! :D