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CEJUG, JavaMe, Domain Driven Design and CruiseControl

This saturday we had our CEJUG traditional event CCT (Café com Tapioca) done monthly, each time in a diferent university. This time we had three speakers, Vando Batista, Rafael Pontes and Luthiano Vasconcelos talking about Java ME, Domain Driven Design and Cruise Control respectively.

Rafael Carneiro opening the event.

All photos I took (just a few due to weak batteries in my camera) are hosted in this album. This was out first event recorded and streamed by TV Software Livre. Thanks also guys from ArgoHost who made it possible.
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palestra android
4 May, 2010 - 2:24 pm
Tags: Android, CEJUG, Faculdade Evolução, notícia, palestra
Posted in português | 1 comment
Essa quinta-feira, dia 6 de Maio de 2010, conversaremos sobre Android na palestra “Android: Visão Geral” a partir das 18:30 na Faculdade Evolução (R. Pedro I, 1276, no Centro). A ideia é falar por cima sobre o mercado mobile, o desenvolvimento Android, as possibilidades e os conceitos principais sobre suas aplicações. Maiores detalhes sobre inscrição [...]
Java: invoking a method by name
29 April, 2010 - 10:29 am
Tags: Class, Java, method, programming, Reflection
Posted in english | 1 comment
import java.lang.reflect.*; public class Foo { public void bar(int param){ System.out.println(param); } public static void main(String args[]){ Object f = new Foo(); try { Method m = f.getClass().getMethod("bar", int.class); m.invoke(f, 42); } catch (Exception e){ System.err.println(e); } } } $ java Foo 42
calling commands in Java
8 April, 2010 - 1:09 pm
Tags: getruntime, Java, programming, runtime
Posted in english | No comments
I don’t like the approach of calling native shell commands in any language instead of using multi platform libraries, but here is a little prof of concept Java program to call native commands. import java.io.*; import java.util.*; public class Exec { public static void main(String args[]) throws IOException { Process proc = Runtime.getRuntime().e xec(args); BufferedReader [...]
Iterating over a HashMap
8 April, 2010 - 11:22 am
Tags: collections, enhanced loop, foreach, hashmap, iterating, Java, programming
Posted in english | No comments
Iterating over a HashMap using the enhanced loop (foreach) in Java is a good way to keep your code smaller, more legible and usually more semantically coherent. import java.util.HashMap; import java.util.Map; class Foo {} public class Main { public static void main(String args[]){ Map<Byte, Foo> mHash; mHash = new HashMap<Byte, Foo>(); [...]
Getting enviroment information on Android
16 March, 2010 - 10:18 am
Tags: Android, Eclipse, Java, programming, who am i, whoami
Posted in english | 4 comments
This is a simple program I wrote called Who Am I that shows informations about the device which it is running. Which can be useful for developers and maybe advanced users. Download: WhoAmI.tar.bz2 – Eclipse project. It’s configured for Android platform 4 (1.6) but should work without problems in newer Android platform versions. WhoAmI.apk – [...]
The Caps Lock Java Socket Server
27 February, 2010 - 9:39 pm
Tags: caps lock, Java, programming, socket, upcase
Posted in english | 1 comment
Here is a simple server for those who are starting studying sockets or just needs a simple socket server example for reuse while writing your own behavior. Features: A client should enter a string and the server would answer the same string, with each symbol in up case, when possible. Default port at 8080. One [...]
Beware the locale
22 February, 2010 - 5:16 pm
Tags: development, i18n, Java, JUnit, locale, programming, String, teste unitário, toString, unit testing
Posted in english | No comments
Today I was programming a toString method for a class widely used in a application, using the very useful String.format that provides a C’s like printf formatter. @Override public String toString() { return String.format("VO[a: %.1f, b: %.1f, c: %.1f]", a, b, a+b); } %.1f means a float with one digit precision after the dot separator. [...]
1º Café com Tapioca de 2010
9 February, 2010 - 3:49 am
Tags: Atlântico, Caelum, café com tapioca, CCT, CEJUG, José Donizetti
Posted in english | No comments
Essa quarta-feira acontece o primeiro CEJUG Café com Tapioca de 2010. O foco serão duas palestras ministradas pelo José Donizetti da Caelum, sendo a primeira sobre VRaptor 3 e a segunda sobre Test Driven Development. O evento será realizado no auditório do Atlântico. Maiores informações no site do evento.
Java Font List
5 January, 2010 - 6:10 pm
Tags: AWT, fonts, Java, JVM, Larabie, Larabie Fonts, programming
Posted in english | Comments Off
Here’s a program that lists fonts available in your JVM. You can also set the environment variable JAVA_FONTS to specify the font directory. import java.awt.GraphicsEnvironment; public class ListFonts { public static void main(String args[]){ GraphicsEnvironment e = GraphicsEnvironment.getLocalGraphicsEnvironment(); for(String font:e.getAvailableFontFamilyNames()){ System.out.println(font); } } } By using pipes you can count how many fonts you [...]
Tiled TMX Map Loader for Pygame
I’m using the Tiled Map Editor for a while, I even wrote that tutorial about it. It’s a general purpose tile map editor, written in Java but now migrating to C++ with Qt, that can be easily used with my set of free pixelart tiles. A map done with Tiled is stored in a file [...]













20 May, 2008 - 1:31 pm
It was a great event! I believe that all the speakers knew very well forward their themes to the public.
I see you soon at the next CCT.
20 May, 2008 - 1:40 pm
Hi Silveira, it was very nice to meet you and participate of the CEJUG CCT event. We will share much of our experiences..
Thank you for the picture =)
Best regards!