Posts – Page 3 – Nikos Katsanos Blog

Design Patterns

Design Patterns, Builder

The Builder is a design pattern which belongs to the family of creational design patterns. It comes very handy when an object is complicated to create (i.e has too many fields) or when the developer needs to control the initialization of an object. (more…)

Posted on 9th May 201615th May 2016 by nikkatsa

Design Patterns

Design Patterns, Singleton

Singleton, is probably, the most controversial object oriented design pattern. Many people even consider it an antipattern. It is used when one and only one instance of a class should exist per JVM (or classloader). (more…)

Posted on 24th April 201615th May 2016 by nikkatsa

Java Libraries

The Apache Commons CLI, Command Line Parsing

Quite a few times when writing a Java application, there is the need of passing command line arguments to the program itself. Usually, the application would have to validate those arguments. For example, making sure that the user passed in a numeric value, or a boolean one. Sometimes validate that…

Posted on 17th April 201615th May 2016 by nikkatsa

Productivity

IntelliJ Live Templates

I am a huge fan of IDEs. I truly believe that a powerful IDE can boost a programmer's productivity by orders of magnitude. Additionally, i also believe that each developer should treat his/her IDE as a tool in his/her toolbox and try to get the most out of it. Having…

Posted on 10th April 201615th May 2016 by nikkatsa