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Assertions in JUnit 4 and JUnit 5 1. Introduction In this article, we’re going to explore in details the assertions available within JUnit. Following the migrating from JUnit 4 to JUnit 5 and A Guide to JUnit 5 articles, we’re now going into details about the different assertions available in… Continue Reading junit-assertions
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Using Math.sin with Degrees 1. Introduction In this short tutorial, we’ll look at how to calculate sine values using Java’s Math.sin() function and how to convert angle values between degrees and radians. 2. Radians vs. Degrees By default, the Java Math library expects values to its trigonometric functions to be in radians.… Continue Reading java-math-sin-degrees
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Hibernate 3 with Spring 1. Overview This article will focus on setting up Hibernate 3 with Spring – we’ll look at how to use both XML and Java configuration to set up Spring with Hibernate 3 and MySQL. Update: this article is focused on Hibernate 3. If you’re looking for… Continue Reading hibernate3-spring
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Integration Patterns With Apache Camel 1. Overview This article will cover some essential enterprise integration patterns (EIPs) supported by Apache Camel. Integration patterns help by providing solutions for standardized ways of integrating systems. If you need to first go over the basics of Apache Camel, definitely visit this article to… Continue Reading camel-integration-patterns
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Spring Boot and Kotlin 1. Overview A big announcement was made back in January in the Spring ecosystem: Kotlin support is coming to Spring Framework 5. This means that Spring Boot 2.x will have first class support for Kotlin. This is of course not unexpected, as the team at Pivotal… Continue Reading spring-boot-kotlin
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Convert java.util.Date to String 1. Overview In this tutorial, we’ll show how we can convert Date objects to String objects in Java. To do so, we’ll work with the older java.util.Date type as well as with the new Date/Time API introduced in Java 8. If you’d like to learn how to do… Continue Reading java-util-date-to-string
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Introducing nudge4j 1. Overview nudge4j allows developers to see the impact of any operation straight-away and provides an environment in which they can explore, learn, and ultimately spend less time debugging and redeploying their application. In this article, we will explore what nudge4j is, how it works, and how any… Continue Reading nudge4j
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Stack Memory and Heap Space in Java 1. Introduction To run an application in an optimal way, JVM divides memory into stack and heap memory. Whenever we declare new variables and objects, call new method, declare a String or perform similar operations, JVM designates memory to these operations from either… Continue Reading java-stack-heap
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Mapping LOB Data in Hibernate 1. Overview LOB or Large OBject refers to a variable length datatype for storing large objects. The datatype has two variants: CLOB – Character Large Object will store large text data BLOB – Binary Large Object is for storing binary data like image, audio, or… Continue Reading hibernate-lob
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Metrics for your Spring REST API 1. Overview In this tutorial, we’ll integrate basic Metrics into a Spring REST API. We’ll build out the metric functionality first using simple Servlet Filters, then using a Spring Boot Actuator. 2. The web.xml Let’s start by registering a filter – “MetricFilter” – into… Continue Reading spring-rest-api-metrics
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