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Guide to Java URL Encoding/Decoding 1. Introduction Simply put, URL encoding translates special characters from the URL to a representation that adheres to the spec and can be correctly understood and interpreted. In this article, we’ll focus on how to encode/decode the URL or form data so that it adheres… Continue Reading java-url-encoding-decoding
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Checking if a Java Graph has a Cycle 1. Overview In this quick tutorial, we’ll learn how we can detect a cycle in a given directed graph. 2. Graph Representation For this tutorial, we’ll stick with the adjacency list graph representation. Firstly, let’s start by defining a Vertex in Java:… Continue Reading java-graph-has-a-cycle
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Understanding Memory Leaks in Java 1. Introduction One of the core benefits of Java is the automated memory management with the help of the built-in Garbage Collector (or GC for short). The GC implicitly takes care of allocating and freeing up memory and thus is capable of handling the majority… Continue Reading java-memory-leaks
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Introduction to jOOL 1. Overview In this article, we will be looking at the jOOL __ library – another product from jOOQ. 2. Maven Dependency Let’s start by adding a Maven dependency to your pom.xml: <dependency> <groupId>org.jooq</groupId> <artifactId>jool</artifactId> <version>0.9.12</version> </dependency> You can find the latest version here. 3. Functional Interfaces… Continue Reading jool
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Find the Middle Element of a Linked List 1. Overview In this tutorial, we’re going to explain how to find the middle element of a linked list in Java. We’ll introduce the main problems in the next sections, and we’ll show different approaches to solving them. 2. Keeping Track of… Continue Reading java-linked-list-middle-element
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XML Libraries Support in Java 1. Introduction In this article we will be comparing Java XML libraries and APIs. This is the second article from the series about Java support for XML, if you want to go deeper into the XPath support in Java have a look at the previous… Continue Reading java-xml-libraries
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Guide to Pattern Matching in Vavr Java Vavr 1. Overview In this article, we’re going to focus on Pattern Matching with Vavr. If you do not know what about Vavr, please read the Vavr‘s Overview first. Pattern matching is a feature that is not natively available in Java. One could… Continue Reading vavr-pattern-matching
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Differences Between JAR and WAR Packaging 1. Overview In this quick tutorial, we’ll focus on the differences between JAR and WAR packaging in Java. First, we’ll define each packaging option separately. Afterwards, we’ll summarize their differences. 2. JAR Packaging Simply put, JAR – or Java Archive – is a package… Continue Reading java-jar-war-packaging
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MD5 Hashing in Java 1. Overview MD5 is a widely used cryptographic hash function, which produces a hash of 128 bit. In this article we shall see how will see different approaches to create MD5 hashes using various Java libraries. 2. MD5 Using MessageDigest Class We have a hashing functionality… Continue Reading java-md5
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Java Null-Safe Streams from Collections Java Java Collections Java Streams 1. Overview In this tutorial, we’ll see how to create null-safe streams from Java collections. To start with, some familiarity with Java 8’s Method References, Lambda Expressions, Optional and Stream API is required to fully understand this material. If you are… Continue Reading java-null-safe-streams-from-collections
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