Printing only numbers with non-repeating digits

Finding string pairs

Spring batch demo

In this article I will show you how easy it is to create a batch job by configuring out-of-the-box components. Today we will read a [CSV file] and convert it to an [XML file] and while we are at it we filter out all persons who don't live in New York. I also stick with using annotations to configure my complete application context. Unfortunately this code currently runs into a nullpointer which I expect to be [this issue].

Unit testing with Mockito

In this article I created a realistic scenario of services depending on each other. This article shows you how you can easily test business logic in isolation.