Recent Posts by Geertjan Wielenga

Without fail, each JavaCC file (and ANTLR file) I have ever found (e.g., for Clojure and Ceylon) has been beaten into submission via this tutorial, which includes a YouTube movie explaining everything: http://platform.netbeans.org/tutorials/nbm-javacc-lexer.html Here's FreeMarker in NetBeans IDE, after applying the above tutorial to this file, which I found on-line after googling for about 5 minutes: https://raw.github.com/freemarker/freemarker/master/src/main/javacc/FTL.jj Not...

Gaea+ is a powerful geospatial application offering stunning 3D visualization, manipulation and analysis of spatial data. The data is pulled from the web using standard Open Geospatial Consortium protocols. The terrain visualization is based on the NASA WorldWind Java SDK, while the user interface was first created in plain Swing, and then ported to the NetBeans Platform in 2009: Gaea+ is being used by the Association of Municipalities and Towns ofSlovenia for public display of...

Let's say here's a method you've defined: Now you decide that "idx" should be "index". So you type "index" instead of "idx": However, if you're smart, you'll first press Ctrl-R on "idx". When you then change "idx" to "index", the javadoc will ALSO be changed, automatically, as you type:

Why does NetBeans IDE not have "extract method" functionality? Well, as Ralph from the NetBeans Team points out, it's as simple as using Alt-Shift-M. For example, here's a big chunk of code in the constructor of the Anagram Game (which is one of the samples in NetBeans IDE): That big chunk of code deserves its own separate method. So, as you can see, I select it all with my mouse and then I press Alt-Shift-M (or Refactor | Introduce Method), which causes the "Introduce Method"...

Prior to the upcoming 7.2 release, the Source | Format menu item would be disabled, unless the currently selected window was an editor document. In 7.2, you can select any of these: project node Source Packages node package node folder node And you can also select multiple nodes, from various kinds, of the above. You'll then see that Source | Format is enabled and functions as you might expect: When the action is invoked everything within the selected nodes is formatted as defined...

An alternative to OpenMap is Geotk. (Read here about the relationship between Geotk and GeoTools.) I recently wrote about how to get started setting up OpenMap in a NetBeans Platform application. Now it's Geotk's turn.  Here's some code to get a first impression of how it works: public class Map extends JFrame { public Map() { initComponents(); setLayout(new BorderLayout()); MapContext mapContext = MapBuilder.createContext(DefaultGeographicCRS.WGS84); ...

Kirk Pepperdine wrote a VisualVM plugin sometime ago for displaying Java's memory pool statistics: Sources are here: http://java.net/projects/memorypoolview  Let's replace those charts with some of the cool charts provided by JavaFX. In real life, of course, the charts below are all squiggly and moving like a stock chart: The data displayed above isn't real. The blog entry you're currently reading only deals with embedding JavaFX charts into Kirk's VisualVM plugin. It does not...

AgroSense is a Java open-source services platform for farm management. It looks like an extremely cool and well-designed app, on top of SwingX, GeoTools, the Flamingo Ribbon bar, the NetBeans Platform, and many other libraries. Click to enlarge the image to get a better view:  As an open source project, the team is constantly looking for new developers to work with them, especially if you're interested in farm software. In fact, forget about creating your own farm software,...

OpenMap is an open-source map technology. Integrated into the NetBeans Platform, you can click on a map (below one of the sample maps that comes with the OpenMap download is shown), and then use Lookup to publish items of interest for display in other windows, which can be undocked at startup (and the application can start in full screen mode) with tabs removed, creating the start of a typical mapping solution, such as used in air traffic control systems: (My mouse isn't shown...