Android Jumble Challenge

Author - Webner
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Jumble Challenge has seen a really good start with more than 115 downloads in initial few days of launch. If you like to unjumble words this is the game for you. With 3 different levels Jumble Challenge is ideal for kids, young and experienced alike. Jumble Challenge is absolutely free Read more…

mongod cannot execute binary file

Author - Webner
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mongod: cannot execute binary file

Most probable reason – you are using 64-bit mongodb, switch to 32-bit for quick solution….or find the compatible 64 bit package

apt-get install subversion – Package subversion is not available

Author - Webner
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On Ubuntu:
$apt-get install subversion
Reading package lists… Done
Building dependency tree
Reading state information… Done
Package subversion is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or is only available from another source
Read more…

WordPress paste/type – how to avoid double space

Author - Webner
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Use + Key instead of just Read more…

SCEA 5 – My 2 cents

Author - Webner
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I recently became SUN certified Enterprise Architect after clearing all 3 parts of SCEA. It is hard to get answers to all questions one may have regarding SCEA but SCEA forum on javaranch.com is great!! I have shared my experience here for each part to help SCEA seekers.

Part Read more…

Tomcat – java.lang.Unsupported Class Version Error: Bad version number in .class file

Author - Webner

This is because your class files were compiled with a Java compiler not compatible with JVM in use within tomcat. If you compiled on the same machine on which you have tomcat running, you must be having 2 JDKs (or a JDK and another JRE) with different versions. Solution to Read more…

Javascript – extract Year from Date

Author - Webner
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If you want to extract the year from Date in Javascript, try getFullYear() method instead of getYear(), see the output below on Firefox and Chrome:

Here’s the code:
<html>
<head>
<script langauge=”javascript”>
var date1 = new Date();
var browser Read more…

MuleStudio – No option to Create New Mule Project

Author - Webner

installed MuleStudio community edition on Ubuntu 11.04. MuleStudio was starting but showed no option to create new Mule Project. Since I have multiple versions of JDK installed, so before starting mule studio I was explicitly exporting JAVA_HOME to point to JDK 1.6 in same terminal window from which Read more…

Dravid

Author - Webner
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Legendary Indian cricketer Rahul Dravid announced his retirement from international cricket today. Although Rahul Dravid is a cricketer, his influence over those who watched him in last 16 years of his career goes beyond that of a sportsman.

Cricket is a game but like any other game, performance and politics Read more…

Online Certifications

Author - Webner
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StudySection.com is the only site which gives you a chance to get certified online in just 30 minutes. Tests on all subjects are absolutely free with unlimited re-attempts. THE CERTIFICATION CENTER for online certifications. Get certified today!
http://www.studysection.com

Tomcat – java.lang.UnsupportedClassVersionError: Bad version number in .class file

Author - Webner

This is because your class files were compiled with a Java compiler not compatible with JVM in use within tomcat. If you compiled on same machine on which you have tomcat running, you must be having 2 JDKs (or a JDK and another JRE) with different versions. Solution to this Read more…

Fatal error: Allowed memory size of 16777216 bytes exhausted

Author - Webner

You need to change the maximum memory allowed to a php script to run.
For this you need to open your php.ini (location of this file will depend on where php is installed on your machine). In my case php.ini is in /etc/php5/apache2/php.ini

Open Read more…

Proxy Pattern and Dynamic Proxies

Author - Webner
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Proxy pattern is about using proxy in front of another entity. It is a structural pattern, which means, it is implemented by changing/extending the structure of code.
One example of proxy classes is remote communication. In case of remote communication, proxy of remote object resides on client side. Purpose Read more…

SVN Merge

Author - Webner
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I use subeclipse plugin (in eclipse) to communicate with SVN. This discussion is applicable to SVN Merge in general but I have used subclipse references. Go through it even if you do not use eclipse/subclipse. It should be useful to you.
I found it confusing to use SVN merge Read more…

LAN Driver Not Installed

Author - Webner

I had not done Windows XP installation for long time by myself. After I did it couple of weeks back, I went into “My Network Places” to configure internet access, only to find no “Local Area Connection” element there in right frame. I was confused until I found that I Read more…

Forgot Linux Root Password

Author - Webner
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Recently I forgot root password of Open SuSE 10.2 Linux installed on my laptop. I searched over net to find steps below following which I was able to successfully reset (change) root password:

1. Boot the system and when you get Grub screen (Grub is boot manager which presents Read more…

Accessing webserver over LAN (Linux+windows)

Author - Webner
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On one machine having SuSE 10.2 OS, I am running Jboss app server 4.2. By default it runs http server on port 8080. I was able to access it from browser using http://127.0.0.1:8080 URL. But I was not able to access it using Read more…

Database Surrogate PKs – Few points

Author - Webner
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I am sure this is obvious stuff but anybody can overlook it, so I thought of adding it in my blog. Many programmers and database designers are using surrogate keys instead of natural keys as PKs (primary keys) now a days. Numeric surrogate keys, obviously are easier and better performance Read more…

Making JRE work in Firefox – Suse 10.2 – 64 bit

Author - Webner
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Like a lot of other people, I faced problems in enabling Java in Firefox on Suse 64 bit OS. But it is working now so I thought of writing the obstacles and how to get rid of them. Basically it comes down to 2 things:

1. You have to make Read more…

OOAD Introduction

Author - Webner
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OOAD (Object oriented analysis & design)

Scope:

As most of you already know, OOA (Object-oriented analysis) and OOD (Object-oriented design) are put together and called as OOAD. To keep the discussion short I won’t be writing anything on the history of OOAD. Instead, let’s Read more…

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