Why do we mock?

I do Java interviews. During the interviews I ask technical question that I know the answer for. You may think…

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Unit test life?

You can not program without testing. You write unit tests first and then you write your code. (Well, I know…

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Some Sentences about Java

There is nothing new in this article. I just collected some trivial statements which may not be trivial for some…

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When null checking miserably fails

Disclaimer Before going on I have to state that the techniques described in this article serve no practical purpose when…

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Why to use String

Recently I was tutoring juniors during a training session. One of the task was to write a class that can…

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Autoboxing

Autoboxing is clear for all Java developers since Java 1.5 Well, I may be too optimistic. At least all developers…

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A classloading mystery solved

Facing a good old problem I was struggling with some class loading issue on an application server. The libraries were…

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Name of the class

In Java every class has a name. Classes are in packages and this lets us programmers work together avoiding name…

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Named parameters in Java

Creating a method that has many parameters is a major sin. Whenever there is need to create such a method,…

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