List/Grid Tag Archives: Java Best Practices
Using a memory mapped file for a huge matrix
Overview Matrices can be really large, sometimes larger than you can hold in one array. You can extend the maximum size by having multiple arrays however this can make your heap size ...
Java Secret: Loading and unloading static fields
OVERVIEW To start with it is natural to assume that static fields have a special life cycle and live for the life of the application. You could assume that they live is a special place ...
The Exchanger and GC-less Java
Overview The Exchanger class is very efficient at passing work between thread and recycling the objects used. AFAIK, It is also one of the least used Concurrency classes. Nevertheless, ...
Do it short but do it right !
Writing concise, elegant and clear code has always been a difficult task for developers. Not only will your colleagues be grateful to you, but you would also be surprised to see how ...
How to get C like performance in Java
Overview Java has many areas which can be slow. However for every problem there is a solution. Many solutions/hacks require working around Java’s protections but if you need low ...
Java Secret: Using an enum to build a State machine
Overview The enum in Java is more powerful than many other languages which can lead to surprising uses. In this article, I outline some the individual features of enum in Java, and ...
Low GC in Java: Use primitives instead of wrappers
Overview There are two good reason to use primitives instead of wrappers where possible.Clarity. By using a primitive, you are making it clear that a null value is not appropriate. Performance. ...
Java Best Practices – Char to Byte and Byte to Char conversions
Continuing our series of articles concerning proposed practices while working with the Java programming language, we are going to talk about String performance tunning. Especially we ...
Java Best Practices – Queue battle and the Linked ConcurrentHashMap
Continuing our series of articles concerning proposed practices while working with the Java programming language, we are going to perform a performance comparison between four popular ...
Java Best Practices – String performance and Exact String Matching
Continuing our series of articles concerning proposed practices while working with the Java programming language, we are going to talk about String performance tuning. We will focus ...
