Skip to main content
View by: Most Recent | Topic | Community | Webloggers   
Monthly Archives:    

Blogs by Community: Java User Groups

• Adopt a JSR  • Embedded  • GlassFish  
• Global Education and Learning  • Identity Management  • IoT  
• Java Communications  • Java Desktop  • Java Enterprise  
• Java Patterns  • Java Tools  • Java User Groups  
• Java Web Services and XML  • JavaFX  • JCP  
• JDDAC  • Jini  • JXTA  
• Mac Java  • NetBeans  • Open JDK  
• Portlet  • Robotics  • Sun Grid  
• Sun RFID and Sensor  • [no association]  


Java User Groups

During the initial architecture and analysis of our J2EE-based application, one Java issue generated a lot of attention on our team : Enterprise Java Beans or EJBs. Should we use EJBs? What flavor of EJBs should we use? At the time, we received no practical advice on EJB usage. We got a lot of general advice. "Use what is best for you, etc." Quite often, we were referred to a diagram with a lot...
on Jun 4, 2012
In the beginning, our development team had no Java experience at all. Most of us were mainframe developers with a decade or so of IT experience. We realized that not only did we need Java training, but we needed training on object-oriented concepts as well. It seemed like a very challenging goal to achieve. One of the reasons we chose our particular Java software tools vendor is because their...
on May 28, 2012
Release the newest version of the framework to persist objects in Apache Cassandra in easy way. Among improvement is the JPA annotations, also JPQL.   JCassandra jCassandra=persistence.createJCassandra("select * from Person"); List<Person> persons=jCassandra.getResultList(); table 1: sample using JPQL in Easy-Cassandra This version has the improvements below: Supporting...
on May 26, 2012
10 years ago, when we were decided to use Java technology to create a new application, for use at Amway Corp; we thought it was sufficient to say, "We are using Java!". We were wrong... We quickly realized that there was Java 2 Standard Edition and there was Java 2 Enterprise Edition. Since we were architecting our application to run in an application server-based environment, we concluded that...
on May 14, 2012
Knuth-Morris-Pratt (KMP) Overview According to Wikipedia, the Knuth-Morris-Pratt algorithm "searches for occurrences of a "word" W within a main "text string" S by employing the observation that when a mismatch occurs, the word itself embodies sufficient information to determine where the next match could begin, thus bypassing re-examination of previously matched characters". Being 'A' the...
on May 10, 2012
Hello all. My name is Larry Fernandez and I am a Principal Software Developer in IT. I work for Amway Corp in Grand Rapids, Michigan. March 2012 was my company's 10-year anniversary using Java. We have over 1 million lines of J2EE code in production, with more on the way. I have been here since our "Java" beginnings and I have played many roles (developer, architect, project manager, etc.). We...
on May 9, 2012
String searching algorithm (SSA) According to Wikipedia, string searching algorithms are "an important class of string algorithms that try to find a place where one or several strings (also called patterns) are found within a larger string or text". Some important concepts that you need to understand before reading this entry are pattern, string and alphabet: Pattern: Set of elements that...
on Apr 19, 2012
A recent topic of discussion on the Java.net JUG Leaders mailing list has been how Java User Groups can entice more people who express interest in attending meetings to actually attend the meetings. JUG Indonesia leader Frans Thamura indicated that typically only about 1/3 of the people who sign up for their JUG meetings actually end up attending. Martijn Verburg of the London Java Community...
on Mar 14, 2012
I’ve just returned from Ireland, where I was presenting a seminar on Clean Code Practices for Java Developers at the Paddy Power Technology Series. You can view my presentation notes. I also gave a presentation introducing Thucidydes, which included a live coding demonstration. You can find out more about it. While there I also trained two teams at Paddy Power (an online betting agency,...
on Mar 13, 2012
Prior to last year's JavaOne, I was in contact with Ryan Cuprak, president of the Connecticut Java Users Group (USA). The plan was that we'd get together at some point during JavaOne and chat. As it turned out, once JavaOne started it quickly became a whirlwind for me (and for Ryan, who presented at least 4 sessions at the conference). I was on the way to the airport on the last day of the...
on Mar 12, 2012
I have a Google Alert that searches for "JUG Java" -- it works pretty well. A few days ago, it pointed me to the Adopt-a-JSR presentation that's now available on Java.net in the Java User Groups JUG Collateral Pack 1_ 2012 folder. The 17-slide presentation is authored by Martijn Verburg and James Gough of the London Java Community ("with lots of extra valuable input" from SouJava). You...
on Mar 7, 2012
I blog this, because shocked with Oracle's Corporate Fair new "program" in our area, Asia Pasific, and feel that our 12 years work is like never seen. Strange what Oracle doing in headquarter, and why all the Sun report from pre-acquzition never come to his office.. I am glad somone can send this blog to him. and change his "status" of this country, Indonesia to a better place...
on Mar 2, 2012
Java User Groups Community leader John Yeary noted that the Algeria Java User Group recently held its first meeting. The meeting was held in conjunction with Software Freedom Day, an international celebration of free and open source software. Algeria JUG members posted pictures from the event on Facebook. The Algeria JUG describes itself and its objectives as follows: Algeria JUG is the...
on Dec 7, 2011
This year is a good year for Meruvian, after 6 years work, now the student can achieve as winner in national competition, but we still have problem send them to APICTA for Asia  Pasific ICT competition, because dunno why. Merit Award could be sent to Asia Pasific. but cant... I wish APICTA global organizer read my blog. Edy is a 15 years, when in competition happen, he was still 2 year in...
on Dec 4, 2011

Java Desktop

Boyer-Moore (BM) Overview According to Wikipedia, the Boyer-Moore algorithm "is an efficient string searching algorithm that is the standard benchmark for practical string search literature. It was developed by Robert S. Boyer and J Strother Moore in 1977. The algorithm preprocesses the string being searched for (the pattern), but not the string being searched in (the text). It is thus well-...
on May 21, 2012
Release the newest version of the framework to persist objects in Apache Cassandra in easy way. Among improvement is the JPA annotations, also JPQL.   JCassandra jCassandra=persistence.createJCassandra("select * from Person"); List<Person> persons=jCassandra.getResultList(); table 1: sample using JPQL in Easy-Cassandra Easy-Cassandra 1.0.8 Easy-Cassandra 1.0...
on Apr 21, 2012
  Running the new version of the Easy-Cassandra framework it main objective is making it easy the communication between Apache Cassandra and your application in java. With it you able create, update, retrieve, delete the java's objects in easy way and simple, for this you must add some annotation in Class and fields.   Characteristics     An ORM easy to use in Cassandra...
on Mar 17, 2012
                 Easy-Cassandra is a framework ORM API and a high client for Apache Cassandra in java, with this is possible persist information from the Java Object in easy way. For this is only necessary add some annotations in some fields and your class. It works like an abstraction's tier in the Thrift, doing call for Cassandra. The Easy-Cassandra...
on Feb 21, 2012
    Nowadays the Enterprise applications beyond persist String and number also can save file. Persist this information is very interesting, for example, a civil process there are information about the process (name of author, date, number of protocol) and the document which represents, or a twett with an image. In Apache Cassandra, you can save file, but for large file you should use...
on Feb 1, 2012
From 1995, when was launched the first Java's version, to 2012 the Java evolute obtained seven versions, many improvements and fixes bugs. In 2011 the biggest “boom” in the java world was about the openjdk recently it's grew in exponential way, but there are some myths arount it, for example, some people know the openjdk like “poor brother” of SUN's JDK (actually Oracle...
on Jan 17, 2012