Conexion de una base de datos de PostgreSql 8.2 a Java

Search file directory (recursive method) with java language

Convert InputStream to byte[]

Convert java.awt.Canvas to java.awt.image.BufferedImage

Snippet for display one frame in full screen mode.

This is a simple function to check if an email is valid or not.

From a tutorial on building an RSS SAX parser on my website:

full article can be found here

Convert
java.awt.Canvas to java.awt.image.BufferedImage or java.awt.image.Image

The following script is a single interface for pre-validating any HTML form. It lets you validate your form data the way you want, while handling the rudimentary tasks itself.

1) Change just one variable to make it work with $_GET or $_POST or $_REQUEST.

2) Name which elements are 'required' all at once in a hidden HTML text input.

3) Easily provide field descriptions in hidden HTML text inputs that you can use to print error statements.

4) Call a single function to print out error statements that you can easily style with CSS.

5) It automatically checks if fields marked 'required' have been filled out.

Most of the pre-validation code is from PHP 5: Unleashed by Sams Publishing. I found it extremely useful for a recent project. Sharing it here, I removed some unnecessary functions, and tried to simplify some points.

All the comments are my own; hopefully I provided more than enough explanation.

I like to have these two methods in my toolbelt, even though it's syntactic sugar, I think it aids clarity.