java

Java: Too big to fail?

Josh Fruhlinger — Thu, 19 Nov 2009 23:14:03 -0500

If you're worked up over the post-merger future of the Java platform, you owe it to yourself to read Peter Wayner's longish piece on this very Web site! It is quite soothing, and you can imagine it being read aloud in the calm, ration voice of a public radio announcer.

Read more ...

Comparing Scala and Groovy via ScalaTest and easyb

Andrew Glover — Mon, 16 Nov 2009 16:40:25 -0500

Because it’s my bag, I’ve recently taken to learning Scala.

Read more ...

The EU objects

Josh Fruhlinger — Tue, 10 Nov 2009 20:29:36 -0500

As predicted by everybody, the EU has issued a formal objection to the Oracle-Sun merger. In particular, the European Commission worries that Oracle will hold back on MySQL development, presumably to prevent the open source database from becoming a rival to Oracle's much pricier high-end offerings.

Read more ...

XML verification just got easier with easyb

Andrew Glover — Thu, 05 Nov 2009 13:57:52 -0500

There’s myriad ways to validate XML these days; in fact, with Groovy, the mechanics of parsing XML with <a href="http://groovy.codehaus.org/Reading+XML+using+Groovy%27s+XmlSlurper">XMLSlurper</a> couldn’t be easier! Nevertheless, from time to time, because it’s my bag, baby, I’ve found that I’ve needed an easy way to validate XML documents without having to actually parse them myself.

Read more ...

Radio Button

sundar4047 — Thu, 05 Nov 2009 03:26:44 -0500

Hello Sir,

How to create the code for the password recovery page(like forgot gmail password question and answer page)using the radion buttons in display the same page in jsp.I need only how to make the question and answer page using the radio buttons.please help me to solve this problem.please send the codes.
If the questinaire page, the answer is wrong then make another question(like password recovery page)and continue to end of the solution.please help anybody.

Thanking you..

Enterprise Java

How to convert Html to Image using Java

arthikbabu — Wed, 04 Nov 2009 09:16:35 -0500

Hi All,
I need to convert a GWT(Google web toolkit) UI to the image file.
Can anyone give me a suggestions to proceed?

I have googled and I found most of the thing with respect to ActiveX
controls. I am not supposed to use ActiveX.

I have looked some AWT / swing coding to convert the html page to image but i am not able to get the full website or when i try some site to convert as a image then it not rendered fully.

Thanks

Enterprise Java

Effective Enterprise Java at Öredev

jhannes — Tue, 03 Nov 2009 12:40:37 -0500

Just three weeks ago, I was asked to step in for Ted Neward to give a tutorial at Öredev on Effective Enterprise Java. As I did not have time to get the tutorial materials printed, I present them here on the web for the participants and others.

Read more ...

EC2 is easier than you think

Andrew Glover — Mon, 02 Nov 2009 11:22:41 -0500

As I’ve written about before with respect to Development 2.0, the future of application infrastructures is already here: it’s the cloud.

Read more ...

Grails hip tip: exporting schema DDLs

Andrew Glover — Tue, 27 Oct 2009 16:05:57 -0400

If you utilize Grails out-of-the-box and don’t change any of the connection profiles, your hip application will be bound to an in memory instance of HSQLDB — this is fine and dandy for developmental purposes, but oftentimes, you’ll want to run Grails on top of a more permanent data store (keep in mind that you can operate in such a manner with HSQLDB’s file based persistence).

Read more ...

Testing Servlets with Mockito

jhannes — Sat, 24 Oct 2009 12:47:30 -0400

When I write Java-projects that produce web pages, I test on several levels. First, I use Jetty and WebDriver to test the result via http. (WebDriver even lets me test JavaScript!)

But for speed and agility, unit-level tests beat even the fastest integration level tests. Unit tests run much much faster, and lets me pinpoint problems much more accurately. As a general rule: If you introduce a bug, you want a unit test to be the one that sees it first.

Read more ...

Anonymous classes are Groovy’s bag, once more

Andrew Glover — Tue, 20 Oct 2009 16:17:09 -0400

As I elaborated previously, Groovy

does not formally support the creation of anonymous inner classes.

Read more ...

How to Copy the contents with line breaks from a JTable to Excel with line breaks included

chaithusworld — Fri, 16 Oct 2009 09:18:08 -0400

Hai
I have an application in which I have a JTable with line breaks(pressing Enter key while editing) included in each and every cell.I have used the code in this site to get my contents to be copied to excel(How to copy data from jtable to Excel).The problem is when I copy the contents from my JTable to Excel I am not getting the contents in same format as in my Jtable(with line breaks) to my excel that is with line breaks.Is there any way to solve my problem?

Thank You
Chaithu

Enterprise Java

I NEED HELP!

kutless3 — Wed, 14 Oct 2009 23:06:00 -0400

How do I write a program to compute the ideal weight for either male or female. According to one study, the ideal weight for a female is 100 pounds plus 5 pounds for each inch in height over 5 feet. For example, the ideal weight for a female who is 5’3’’ would be

Read more ...

Tools and Methods

Groovy hip tip: to use or not to use setters and getters

Andrew Glover — Wed, 14 Oct 2009 15:04:03 -0400

In Groovy, if you define a hip object with properties, you can access them directly; that is, you don’t have to define the bogue old-style sett

Read more ...

easyb now has an Eclipse plug-in!

Andrew Glover — Tue, 06 Oct 2009 14:00:09 -0400

The easyb team is excited to report that a hip Eclipse plug-in is in the works and an initial version is already available due to the copacetic work of both Darran White and Robert Hjertmann! The plug-in works with Eclipse 3.4 and 3.5 and currently supports running behaviors (both stories and scenarios) via the a run configuration.

Read more ...

You can borrow EC2 too

Andrew Glover — Thu, 01 Oct 2009 18:05:40 -0400

The aspects of Development 2.0 aren’t really new– but they are each increasingly becoming a reality for businesses across the board.

Read more ...

Instant Continuous Integration via the cloud

Andrew Glover — Mon, 28 Sep 2009 11:25:02 -0400

Looking to get Continuous Integration running for your project in short order? I recently took a look at CI in a Box, which is a

cloud based solution that provides Hudson, as a CI server, Java 6, Ant and Maven 2

Read more ...

easyb 0.9.6 released

Andrew Glover — Wed, 16 Sep 2009 16:29:07 -0400

The easyb team is excited to announce that version 0.9.6 is out! This version adds a number of hip features including:

Read more ...

Scala, the java of the future

giladmanor — Sat, 12 Sep 2009 13:58:59 -0400

The tug-o-war of software development languages gets really confusing; it’s hard to decide what language would prevail and become the new standard in application development. Why is it important? Because we are application developers, and our relevance in the business landscape is linked to the tools we are skilled in operating.

Read more ...

easyb now supports re-running failed behaviors

Andrew Glover — Thu, 10 Sep 2009 12:18:23 -0400

The latest version of easyb (that is, 0.9.6) contains two new features (among others, man):

Read more ...

Call java inside a java function

newbe — Mon, 07 Sep 2009 17:48:28 -0400

Hello,

I'm new to java and have the following problem.

In the example belowe, I need to replace the link through a javascript. The code must execute the function instade of the users click on the a tag.


Html-Head:
Html-Body:

		$('.absoluteIframeDOMWindow').openDOMWindow({

		height:324,

		width:545, 

Read more ...
Community Discussion



Stack trance
iirekm — Sun, 30 Aug 2009 15:06:18 -0400
Debugging programs is a hard job. In this article I show some of my patterns and experience with using stack traces. If done well, they can almost eliminate the need of using debugger and logging messages.
Read: http://coding-masters.blogspot.com/2009/08/stack-trance.html for more.
Core Java



Hello Google App Engine
Andrew Glover — Wed, 19 Aug 2009 21:21:15 -0400
As I’ve written about before, open source solutions and borrowed infrastructures are changing the character of 

Read more ...


License security in Java, don’t be the easiest target
giladmanor — Tue, 18 Aug 2009 10:47:27 -0400
Java based enterprise products that are not open source have a big issue with Intellectual Property Rights license protection. The relative ease of byte code decompilation makes it easy to copy the product with the license protection disabled. One can measure the magnitude of the problem just by counting the number of products that claim to have the solution. Dongle, code encryption or machine signatures are popular techniques for license security. However, there is always that weak link, that single validation method, returning a Boolean that checks the existence of the license.
 

Read more ...


Increasing Tomcat’s memory
Andrew Glover — Tue, 18 Aug 2009 10:38:56 -0400
If you happen to casually peruse the Grails documentation, you might notice the following note regarding memory (please note, man, that the emphasis has been added by yours truly):
If memory is not a problem on your server then allocate a large amount of memory, such as 512M or more. Also use the server VM option. EG: (-server -Xms512M -Xmx512M). Usually it is better to set both min and max heap size to the same in server applications. 

Read more ...