Groovy, java, educational technologies

Groovy is an object oriented dynamic language for the JVM. Dynamically compiled to a bytecode and interoperable with most Java libraries, Groovy is a perfect candidate for writing lightweight scripts that still can benefit from the Java ecosystem. Also, it is really easy to learn since the good old Java syntax is usually valid in Groovy. There are, however, a few caveats that you should be aware of before start coding. This post shows some specific features, and also gives a few suggestions which will help to write a clear, groovy-style code.

Java, lock, educational technologies

Java locks often supersede synchronized blocks and methods by allowing to back out from the synchronization attempt. This post shows how to use the feature, and demonstrates some other basic concepts, like the lock fairness and reentrant locks, which should help you to get started with the lock-based synchronization.

Authorize.net, java technologies

In the previous post I’ve told how to bill a customer with a minimal fuss. But oftentimes returning customers wish to add or change their billing information or maybe you want to delete the old ones. Let’s dive deeper and see what’s possible to do with Authorize.Net Customer Information Manager by remote procedure calls using, as previously, Java SDK.

Smpp, java, howto technologies

Short Message Peer to Peer (SMPP) is an open, telecommunications industry protocol for exchanging text messages (SMS) between short message service centers (SMSC) and External Short Messaging Entities (ESMEs). The protocol is often used for connecting to SMS centers in order to send messages to mobile devices.

Ioc, spring, java technologies

This week I'll tell you about inversion of control. This is very useful thing if you are going to develop dynamic application in compliance with modern approach to software development.