Core Java
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Insert content with Apache POI
Intro Everybody knows POI! It is the best library available to create Excel documents in Java. it is really good…
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New life of old Visitor design pattern
Introduction Visitor [1, 2] is a widely known classical design pattern. There are a lot of resources that explain it in…
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How to put Java application behind Apache HTTP server
In the “old days” it was very common thing to put Apache HTTP server in front of your Java application…
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Two ways to extend enum functionality
Preface In my previous article I explained how and why to use enums instead of switch/case control structure in Java…
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Var and Language Design
What is var in Java The var predefined type introduced in Java 10 lets you declared local variables without specifying…
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Featured enum instead of switch
Problem and its solution Switch/case is the common control structure implemented in most imperative programming languages. Switch is considered more…
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Removing elements from a Map in Java
Very short and simple post on removing elements from a Map in Java. We will be focusing on removing multiple…
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How and Why to Analyze, Generate and Transform Java Code Using Spoon
Spoon is a tool to analyze, generate, and transform Java code. In this article we will see what can be achieved…
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Thread Local Allocation Buffers
Recently, I’ve been working on a Java application that suffered some serious performance issues. Among many problems, the one which…
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