Encountering memory leak using Apache HSSF POI when writing 50k+ rows to an excel file. Aside from increasing java heap size, would there be any more solution this problem?

Is it possible? Whenever I try creating a table, it says that you can only define one identity column in a single table. So is it impossible to have two columns with automatically …

I'm doing a bit of research on the cost of Java short courses in the country. From the PinoyJUG mailing-list, it was mentioned that such courses are available in Active Learning. …

I am stuck over deciding whether to concentrate on php/mysql or java.. am a starter and Ive learned that I have to chose a language to which I would exert my effort to familiarize. …

Is there a quick way to reset JTextFields without typing jTextFieldX.setText("") (where X is the number of the JTextField) for every single JTextField?

I have several eBooks which I purchased online and would like to add them to my bookshelf created in Adobe Digital Editions. However, digital editions does not support password pro …

For profiling I'm currently using jvisualvm (comes with JDK 6) and for monitoring garbage collection I use, visualgc from the jvmstat bundle. At the moment, I'm looking for ways t …

i'm an undergrad student, one of our project is to develop an inventory system, and our instructor would like it to be java-based, and the client wants a web-app.. what would you s …

I'm looking for a Java library that could help me read pdf files. Any suggestions? Thanks.

http://onjava.com/onjava/2003/03/12/java_comp.html#listing4 listing 4 and listing 5 makes a program... now what i want is to be able to add records on the array persons Person …

I have been using Java and a proprietary framework for quite some time now, and I would like to try out other Java technologies, specifically for web development. Which technology …

I need to apply a paper written by D. A. Clausi on K-means Iterative Fisher unsupervised clustering algorithm applied to image texture segmentation for a masters course. I have so …

Sooo I just finished my last project for the year and I'm looking for a pet project that would keep me busy coding for the x'mas season. At least it'll keep my attention off the f …

Ever since college, I've been using JBoss as my staple Java EE Container / Server. I haven't used Sun's Glassfish for production, and never used / practiced on those pricey Java EE …

I'm not very familiar with networking. But i have a mobile application which needs to establish a socket connection with a server. In some cases though, operators/telcos block the …