Java Archives - Page 22 of 30

java-picocli-create-command-line-program

Create a Java Command Line Program with Picocli 1. Introduction In this tutorial, we’ll approach the picocli library, which allows us to easily create command line programs in Java. We’ll first get started by creating a Hello World command. We’ll then take a deep dive into the key features of… Continue Reading java-picocli-create-command-line-program

Posted on: 2019-10-08 2019-11-19
Author: getdocs
Tags: Java, Programming
Leave a comment: java-picocli-create-command-line-program

java-list-primitive-int

List of Primitive Integer Values in Java 1. Overview In this tutorial, we’ll learn how to construct a list containing primitive integer values. We’ll explore solutions using core Java and external libraries. 2. Autoboxing In Java, generic type arguments must be reference types. This means we can’t do something like List<int>.… Continue Reading java-list-primitive-int

Posted on: 2019-10-08 2019-11-19
Author: getdocs
Tags: Java
Leave a comment: java-list-primitive-int

java-bucket-sort

Bucket Sort in Java 1. Introduction In this article, we’ll dive into the bucket sort algorithm. We’ll start with a quick bit of theory, before working on the Java implementation alongside unit testing our solution. Finally, we’ll look at the time complexity of bucket sorting. 2. The Theory of Bucket… Continue Reading java-bucket-sort

java-heap-sort

Heap Sort in Java 1. Introduction In this tutorial, we’ll see how Heap Sort works, and we’ll implement it in Java. Heap Sort is based on the Heap data structure. In order to understand Heap Sort properly, we’ll first dig into Heaps and how they are implemented. 2. Heap Data… Continue Reading java-heap-sort

java-secure-random

The Java SecureRandom Class 1. Introduction In this short tutorial, we’ll learn about java.security.SecureRandom, a class that provides a cryptographically strong random number generator. 2. Comparison to java.util.Random Standard JDK implementations of java.util.Random use a Linear Congruential Generator (LCG) algorithm for providing random numbers. The problem with this algorithm is that it’s… Continue Reading java-secure-random

java-xpath

Intro to XPath with Java 1. Overview In this article we’re going to go over the basics of XPath with the support in the standard Java JDK. We are going to use a simple XML document, process it and see how to go over the document to extract the information… Continue Reading java-xpath

jgrapht

Introduction to JGraphT 1. Overview Most of the time, when we’re implementing graph-based algorithms, we also need to implement some utility functions. JGraphT is an open-source Java class library which not only provides us with various types of graphs but also many useful algorithms for solving most frequently encountered graph… Continue Reading jgrapht

java-web-start

A Guide to the Java Web Start 1. Overview This article explains what Java Web Start (JWS) is, how to configure it on the server side, and how to create a simple application. 2. Introduction JWS is a runtime environment that comes with the Java SE for the client’s web… Continue Reading java-web-start

derive4j

Intro to Derive4J 1. Introduction Derive4J is an annotation processor that enables various functional concepts in Java 8. In this tutorial, we’ll introduce Derive4J and the most important concepts enabled by the framework: Algebraic data types Structural pattern matching First class laziness 2. Maven Dependency To use Derive4J, we need… Continue Reading derive4j

java-security-overview

The Basics of Java Security 1. Overview In this tutorial, we’ll go through the basics of security on the Java platform. We’ll also focus on what’s available to us for writing secure applications. Security is a vast topic that encompasses many areas. Some of these are part of the language… Continue Reading java-security-overview