Do you think to be an open source committer?
We widely use open source developer tools and libraries in our daily dev life. These open source things are driven by community. I am an open source fan. And I…
New topics added in SCJP 6 Certification (CX-310-065)
Following are the points that are highlighted in Kathi Sierra and Bert Bates book on SCJP6. 1- Console class. 2- NavigableSet and NavigableMap. 3- Lower(int) and higher(int) function are added…
Fetch Twitter friends or followers through REST API in Java
I was playing around with fetching Twitter followers and friends with Twitter4J. But it was taking time to do that. So I code it with using REST urls given by…
Java certification voucher in $40 till 31st March 2010 for students
From a recent announcement from Oracle under Sun Academic Initiative program (SAI). Now students can get Java certification voucher in $40 till 31st March 2010. This is an excellent opportunity…
How to use and retain Twitter4J OAuth access token
I was stuck in a problem that how to re use access token, once user has authenticated by Twitter (on call back URL). I got it working. There was problem…
I have started preparing for SCJP
Its been a year since I purchased the voucher for SCJP 5.0. But I cant concentrate to have time to prepare it. From last night I have taken the oath…
Useful cheat sheets on Cloud Computing and Google App Engine for Java
Just read cheat sheets (Refcard) by Dzone on Cloud Computing and Google App Engine for Java. They contain a very jumped to the point and quick reference on these things….
Got two books on Google App Engine for Java
Recently I got two books on Google App Engine for Java. Programming Google App Engine by Oreilly and Beginning Google App Engine by Apress. There is less material and comprehensive…
Tutorial: JPA on Google App Engine
This project will create and delete an entity record. I have chosen JPA for datastore in app engine. You can also look JDO for this purpose. But my choice to…
Upgrading to Google App Engine Java SDK 1.2.8
I was getting following exception while trying to code my first interaction with JPA in Google App Engine. After some searching I came to know that I should upgrade my…