Blogs by topic: Java Desktop
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Education
The search algorithm is used for finding an item within a collection of items. String searching algorithm is a category of the search algorithm. The main idea of string searching algorithm is to find text pattern in a string. There are many techniques used to solve this. This third and last entry will be about 'Boyer-Moore (BM)' algorithm and how you can apply it on a simple Java code.
Many things changed from java 1 in 1995 at java 7 2012. Learn about this reading this article.
Programming
A few nights ago, I was browsing the chapters about concurrent programming in Herbert Schildt's excellent "Java: The Complete Reference, 8th Edition," and I was struck by the evolution of concurrency in Java over the years, from threads, through the richness of Java 5's Concurrency Utilities, and on to Java 7's Fork/Join Framework...
With the advent of multicore processors on everything from desktop computers to tablets, pads, and even mobile phones, parallel processing is gaining increasing attention. This is at least in part what's behind the release of the Fork/Join Framework in Java 7, and the inclusion of Lambda Expressions...
What is the largest double that could in theory be produced by Math.random()? In this newsletter, we look at ways to calculate this based on the 48-bit random generator available in standard Java. We also prove why in a single-threaded program, (int)(Random.nextDouble() + 1) can never be rounded up to 2.
A couple of weeks ago, I sent out a little quiz to my readers of The Java Specialists' Newsletter. No one managed to figure out what the code does without running it. Some managed to explain the result once they had run it. Perfect quiz for weeding out those job applicants you don't like. Especially if you are working in the banking industry. OK, enough hints, let's look at the quiz :-)
A new tutorial exercises VisualLangLab using all the examples and techniques in Chapter-3 "A Quick Tour for the Impatient" of the book "The Definitive ANTLR Reference". A new "WildCard" pseudo-token that matches any other defined token has been added to facilitate recovery from grammar errors in the input. Read about the various other improvements that make VisualLangLab even more user-friendly.
Databases
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...
Performance
In some earlier posts, I've talked about Java threads, Java Thread Overhead, and Amdahl's Law and Parallel Processing Speed-Up. My next investigation in this series is Java 7's new Fork/Join Framework. I plan to spend quite a lot of time in this particular investigation...
Community
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...
Know how persist document in the Cassandra in a way fairly simple
Accessibility
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...
Swing
The next entry of the Swing in a better world serial
GUI
Information on the new SwingX 1.6.3 release.
In my last blog I’ve introduced JavaFX 2.0 beta, describing an initial port of JavaFX Balls, also in beta stage at that time. Now I finally finish JavaFX Balls 3.
Look ma, no design!
I don’t pretend to be a designer, and the consequence is that when I make a mashup of animation, video and web, that’s the result. Get the source code here.
I’ve added new layers of content...
Welcome java 7 part 3 -NIO 2 JSR 203
So like the coin project, in the NIO 2 there aren't unprecedented features in this e -specification, but now it's possible do some easier work I/Os in java. With the class java.io.Files are possible to perform several operations in simple mode. For that it needs and uses the java.io.file.Path, this interface represents files and...
On the new JavaFX 2.0.2 beta release for Mac OS.
How JavaFX 2.0 takes the best ideas from Swing, Flash, HTML, CSS, and JavaScript and brings it all together in one powerful technology.
J2SE
Was added to his package to facilitate applications which needs scalable processes.
A feature is atomic variable. Variable atomic means that it cannot be divided - it's like the S.O. with any resource (Driver CD, USB) cannot be divided but needs be used in many processes.
...
The java.util.concurrent library added a little gem of a class, TimeUnit, which is well worth knowing a bit about.
