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Guide to the Cipher Class 1. Overview Simply put, encryption is the process of encoding a message such that only authorized users can understand or access it. The message, referred to as plaintext, is encrypted using an encryption algorithm – a cipher – generating ciphertext that can only be read… Continue Reading java-cipher-class

Performance Comparison of Primitive Lists in Java Java 1. Overview In this tutorial, we’re going to compare the performance of some popular primitive list libraries in Java. For that, we’ll test the add(), get(), and contains() methods for each library. 2. Performance Comparison Now, let’s find out which library offers… Continue Reading java-list-primitive-performance

Iterate over a Map in Java 1. Overview In this quick article, we’ll have a look at the different ways of iterating through the entries of a Map in Java. Simply put, we can extract the contents of a Map using keySet(), valueSet() or entrySet(). Since those are all sets,… Continue Reading java-iterate-map

Image to Base64 String Conversion 1. Overview In this quick tutorial, we’re going to cover how to encode image file to a Base64 String, then decode it to retrieve the original image using Apache Common IO and Java 8 native Base64 features. This operation could be applied for any binary files or… Continue Reading java-base64-image-string

Guide to Java Reflection 1. Overview In this article we will be exploring java reflection, which allows us to inspect or/and modify runtime attributes of classes, interfaces, fields and methods. This particularly comes in handy when we don’t know their names at compile time. Additionally, we can instantiate new objects,… Continue Reading java-reflection

Listing Numbers Within a Range in Java 1. Overview In this tutorial, we’ll explore different ways of listing sequences of numbers within a range. 2. Listing Numbers in a Range ==== 2.1. Traditional for Loop We can use a traditional for loop to generate numbers in a specified range: public… Continue Reading java-listing-numbers-within-a-range

Intro to JaVers 1. Overview In this article, we will be looking at the JaVers library. This library helps programmers examine and detect changes in the states of simple Java objects. When we use mutable objects in our code, every object can potentially be modified in various places in the… Continue Reading javers