Monthly Archives: April 2011

Creating StringBuilder in Java

Posted by & filed under , , .

I wrote in my previous post about StringBuilder’s in Java, and I felt I should provide some measurements around the whole discussion. So I put together some quick and dirty code which is good enough for a comparison of the 2 ways of creating a StringBuilder — bear in mind I said “comparison”, as such […]

About Data Comparison in Java

Posted by & filed under , , .

If you have been involved in some coding (Java or otherwise) more than likely at some point you had to deal with the situation where you have to compare some data — for the purpose of sorting items in a list, of validating input, or many of the many other situations that require it. And […]

Data Validation inside a List

Posted by & filed under , , .

Felt like sharing this, since there might be some other “dinosaurs” like myself (i.e. slow in their using the Apache Commons Collections) — and those guys might find this useful 🙂 Occasionally you find yourself providing components that will be used by various modules in a project, and as such you have to employ strict […]

Neat Trick for Returning an Empty List in Java

Posted by & filed under , , , .

I’ve found this post actually burried in my “Drafts” — it’s been there for sometime it seems. I recall writing about it on my mobile WordPress application, so I’m guessing I’ve saved it as draft on the blog with the view to apply the code pretty-printing and forgot about it quite likely 🙂 So I […]

computer code

Arrays in Java

Posted by & filed under , , , .

I seem to be on a roll today so I thought I’d mention this little tip that I have come across in the past when using arrays — more specifically bi-dimensional arrays. We think of such arrays (in Java and other languages as well!) quite often as a bit of a Scrabble board where we […]

Thread Pools in Java

Posted by & filed under , , , .

On the subject of Java code optimisation: I’m sure we’re all familiar with the concept of thread pooling — typically used together with the Executor framework. Configuring your thread pools can be tricky: choose a small value and you’re not making usage of your server power, on the other hand, choose a value large enough […]

Java StringBuilder

Posted by & filed under , , , .

This is something that I have seen quite a few times while looking online at other people’s code so I thought I’d write about it quickly — preach the world and all that 🙂 I’m referring here to the JDK class StringBuilder, however, those of you who know your JDK classes would surely have figured […]