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Guide to JAXB 1. Introduction This is an introductory article on JAXB (Java Architecture for XML Binding). First, we’ll show how to convert Java objects to XML and vice-versa, and then we’ll focus on generating Java classes from XML schema and vice-versa by using JAXB-2 Maven plugin. 2. Overview JAXB… Continue Reading jaxb
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Counting Sort in Java 1. Overview General-purpose sorting algorithms like Merge Sort make no assumption about the input, so they can’t beat the O(n log n) in the worst case. Counting Sort, on the contrary, has an assumption about the input which makes it a linear time sorting algorithm. In this… Continue Reading java-counting-sort
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How to Find the Kth Largest Element in Java 1. Introduction In this article, we’ll present various solutions for finding the kth largest element in a sequence of unique numbers. We’ll use an array of integers for our examples. We’ll also talk about each algorithm’s average and worst-case time complexity.… Continue Reading java-kth-largest-element
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Sorting in Java 1. Overview This article will illustrate how to apply sorting to Array, List, Set and Map in Java 7 and Java 8. 2. Sorting with Array Let’s start by sorting integer arrays first using Arrays.sort() method. We’ll define the following int arrays in a @Before jUnit method:… Continue Reading java-sorting
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Introduction to javax.measure 1. Overview In this article, we’ll introduce the Units of Measurement API – which provides a unified way of representing measures and units in Java. While working with a program containing physical quantities, we need to remove the uncertainty about units used. It’s essential that we manage… Continue Reading javax-measure
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Creating a Triangle with for Loops in Java 1. Introduction In this tutorial, we’re going to explore several ways to print a triangle in Java. There are, naturally, many types of triangles. Here, we’re going to explore only a couple of them: right and isosceles triangles. 2. Building a Right… Continue Reading java-print-triangle
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A Guide to Java Bytecode Manipulation with ASM Java Java Bytecode 1. Introduction In this article, we’ll look at how to use the ASM library for manipulating an existing Java class by adding fields, adding methods, and changing the behavior of existing methods. 2. Dependencies We need to add the… Continue Reading java-asm
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Guide to java.lang.Process API 1. Introduction In this tutorial, we’re going to take an in-depth look at the Process API. For a shallower look into how to use Process to execute a shell command, we can refer to our previous tutorial here. The process that it refers to is an executing application.… Continue Reading java-process-api
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Calculate the Distance Between Two Points in Java 1. Overview In this quick tutorial, we’ll show how to calculate the distance between two points in Java. 2. The Math Formula of the Distance Let’s say we have two points on a plane: the first point A has the coordinates (x1,… Continue Reading java-distance-between-two-points
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Converting JSON to CSV in Java 1. Introduction In this short tutorial, we’ll see how to use Jackson to convert JSON into CSV and vice versa. There are alternative libraries available, like the CDL class from org.json, but we’ll just focus on the Jackson library here. After we’ve looked at… Continue Reading java-converting-json-to-csv
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