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An Overview of QuickSort Algorithm 1. Introduction In this article, we’re going to look at the quicksort algorithm and understand how it works. Quicksort is a divide-and-conquer algorithm. This means each iteration works by dividing the input into two parts and then sorting those, before combining them back together It… Continue Reading algorithm-quicksort
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Jackson – Custom Serializer 1. Overview This quick tutorial will show how to serialize a Java entity with Jackson 2 using a Custom Serializer. If you want to dig deeper and learn other cool things you can do with the Jackson 2 – head on over to the main Jackson… Continue Reading jackson-custom-serialization
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Unshorten URLs with HttpClient 1. Overview In this article we’re going to show how to unshorten an URLs using HttpClient. A simple example is when the original URL has been shortened once – by a service such as bit.ly. A more complex example is when the URL has been shortened… Continue Reading unshorten-url-httpclient
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REST-assured with Groovy 1. Overview In this tutorial, we’ll take a look at using the REST-assured library with Groovy. Since REST-assured uses Groovy under the hood, we actually have the opportunity to use raw Groovy syntax to create more powerful test cases. This is where the framework really comes to… Continue Reading rest-assured-groovy
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Introduction to Netflix Servo 1. Overview Netflix Servo is a metrics tool for Java applications. Servo is similar to Dropwizard Metrics, yet much simpler. It leverages JMX only to provide a simple interface for exposing and publishing application metrics. In this article, we’ll introduce what Servo provides and how can… Continue Reading netflix-servo
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Extension Methods in Kotlin 1. Introduction Kotlin introduces the concept of Extension Methods – which are a handy way of extending existing classes with a new functionality without using inheritance or any forms of the Decorator pattern – after defining an extension. we can essentially use it – as it… Continue Reading kotlin-extension-methods
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Twelve-Factor Methodology in a Spring Boot Microservice 1. Overview In this tutorial, we’ll understand the twelve-factor app methodology. We’ll also understand how to develop a microservice with the help of Spring Boot. In the process, we’ll see how to apply the twelve-factor methodology for developing such a microservice. 2. What… Continue Reading spring-boot-12-factor
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How to Read a File in Java 1. Introduction In this article, we will see how we can read a file from a classpath, URL or inside a JAR file, using standard Java classes. Further reading: Java – Create a File How to create a File in Java using JDK… Continue Reading reading-file-in-java
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Mockito Tutorial This tutorial series focuses on the Mockito library – from basic to more advanced use cases, as well as integrating it with other useful testing libraries like JUnit. Mockito Basics + Getting Started with Mockito @Mock, @Spy, @Captor and @InjectMocks + Quick Guide to BDDMockito + Mockito’s Mock… Continue Reading mockito-series
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Java Weekly, Issue 207 Lots of interesting writeups on Java 9 this week. Here we go… 1. Spring and Java ===== >> Exploring the jlink plug-in API in Java 9 [in.relation.to] Jlink allows us to create fully self-contained runtime images containing your application. Pretty cool. >> Automatic-Module-Name: Calling all Java… Continue Reading java-weekly-207
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