Many of the Java developers know how it is to work with Swing in Java for creating a nice GUI for their application, a total waste of time! Since I started working at my new job, one of the coordinators there told me study more about Gui4j which is a framework for describing Java Swing GUIs completely in XML.

This framework is really simple and fast to learn, you have a XML file for every window you create. Also the user interface is created dinamically and you can separate the controller from the GUI definitions, so that the GUI elementes have acces to the methods of the controller, but the controller no acces to the GUI elements.

In the following code you will see how you can make a window with a button in Gui4j. For that I’m gonna use Eclipse and the libraries: gui4j-1.23.jar, dom4j.jar, commons-logging-1.1.jar the first will be used for the GUI and dom for XML handling.

Here’s the structure of the project:

Project structure

The controller package will contain BangController, BasicController, the main package will contain BangMain and the xml package the xml files used for the description of the GUI (also inclused view.dtd).

The components of the Gui4j framework are described in gui4jComponets and the file can be downloaded together with the needed libraries from Gui4j’s official website.

To be continued …

1. gui4j | Vest Blog Says:
   
   Warning: strtotime() [function.strtotime]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Helsinki' for 'EEST/3.0/DST' instead in /home/tomitzel/domains/tech.tomarea.com/public_html/wp-includes/functions.php on line 35
   
   Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Helsinki' for 'EEST/3.0/DST' instead in /home/tomitzel/domains/tech.tomarea.com/public_html/wp-includes/functions.php on line 107
   
   Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Helsinki' for 'EEST/3.0/DST' instead in /home/tomitzel/domains/tech.tomarea.com/public_html/wp-includes/functions.php on line 109
   
   Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Helsinki' for 'EEST/3.0/DST' instead in /home/tomitzel/domains/tech.tomarea.com/public_html/wp-includes/functions.php on line 111
   
   Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Helsinki' for 'EEST/3.0/DST' instead in /home/tomitzel/domains/tech.tomarea.com/public_html/wp-includes/functions.php on line 112
   March 7th, 2009 at
   Warning: strtotime() [function.strtotime]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Helsinki' for 'EEST/3.0/DST' instead in /home/tomitzel/domains/tech.tomarea.com/public_html/wp-includes/functions.php on line 35
   
   Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Helsinki' for 'EEST/3.0/DST' instead in /home/tomitzel/domains/tech.tomarea.com/public_html/wp-includes/functions.php on line 107
   
   Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Helsinki' for 'EEST/3.0/DST' instead in /home/tomitzel/domains/tech.tomarea.com/public_html/wp-includes/functions.php on line 109
   
   Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Helsinki' for 'EEST/3.0/DST' instead in /home/tomitzel/domains/tech.tomarea.com/public_html/wp-includes/functions.php on line 111
   
   Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/Helsinki' for 'EEST/3.0/DST' instead in /home/tomitzel/domains/tech.tomarea.com/public_html/wp-includes/functions.php on line 112
   4:14 pm

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