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Composite Design pattern in Java 1. Introduction In this quick tutorial, we’ll introduce the composite design pattern in Java. We’re going to describe the structure and the purpose of its use. 2. The Structure The composite pattern is meant to allow treating individual objects and compositions of objects, or “composites” in… Continue Reading java-composite-pattern
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The @JvmSynthetic Annotation in Kotlin 1. Introduction Kotlin is a programming language for the JVM and compiles directly to Java Bytecode. However, it’s a lot more concise than Java, and certain JVM features don’t directly fit into the language. Instead, Kotlin provides a set of annotations that we can apply… Continue Reading kotlin-jvm-synthetic
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RxJava Hooks 1. Overview In this tutorial, we’re going to learn about RxJava hooks. We’ll be creating short examples to demonstrate how the hooks work in different situations. 2. What are RxJava Hooks? As the name depicts, RxJava hooks allow us to hook into the lifecycle of Observable, _Completable, Maybe,… Continue Reading rxjava-hooks
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How to Calculate Levenshtein Distance in Java? 1. Introduction In this article, we describe the Levenshtein distance, alternatively known as the Edit distance. The algorithm explained here was devised by a Russian scientist, Vladimir Levenshtein, in 1965. We’ll provide an iterative and a recursive Java implementation of this algorithm. 2.… Continue Reading java-levenshtein-distance
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Introduction to Using FreeMarker in Spring MVC 1. Overview FreeMarker is a Java based template engine from the Apache Software Foundation. Like other template engines, FreeMarker is designed to support HTML web pages in applications following the MVC pattern. This tutorial illustrates how to configure FreeMarker for use in Spring… Continue Reading freemarker-in-spring-mvc-tutorial
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Intro to Apache Storm 1. Overview This tutorial will be an introduction to Apache Storm, a distributed real-time computation system. We’ll focus on and cover: What exactly is Apache Storm and what problems it solves Its architecture, and How to use it in a project 2. What is Apache Storm?… Continue Reading apache-storm
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Console I/O in Kotlin 1. Introduction When we learn a new programing language, it’s common to start with console I/O. In this tutorial, we’ll explore some alternatives for handling console I/O with Kotlin. 2. Using the Kotlin Standard Library The Kotlin standard library provides us extensions for handling I/O based… Continue Reading kotlin-console-io
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Guide to Hibernate 4 with Spring 1. Overview This article will focus on setting up Hibernate 4 with Spring – we’ll look at how to configure Spring with Hibernate 4 using both Java and XML Configuration. Parts of this process are of course common to the Hibernate 3 article. 2.… Continue Reading hibernate-4-spring
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The Baeldung Weekly Review 26 1. Java and Spring ===== >> Project Jigsaw: Phase Two Mark Reinhold has just announced what’s next for the JDK 9 Java module system. Looks like a more decent plan than the first go-round – taking bite sized chunks and integrating them into the platform… Continue Reading 2014-week-review-26
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Types of Strings in Groovy 1. Overview In this tutorial, we’ll take a closer look at the several types of strings in Groovy, including single-quoted, double-quoted, triple-quoted, and slashy strings. We’ll also explore Groovy’s string support for special characters, multi-line, regex, escaping, and variable interpolation. 2. Enhancing java.lang.String It’s probably good… Continue Reading groovy-strings
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