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Radix Sort in Java Algorithms Java 1. Introduction In this tutorial, we’ll learn about Radix Sort, analyze its performance, and take a look at its implementation. Here we focus on using Radix Sort to sort integers, but it’s not limited to just numbers. We can use it to sort other… Continue Reading java-radix-sort
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Command-Line Arguments in Java 1. Introduction It’s quite common to run applications from the command-line using arguments. Especially on the server-side. Usually, we don’t want the application to do the same thing on every run: we want to configure it’s behavior some way. In this short tutorial, we’ll explore how… Continue Reading java-command-line-arguments
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Different Ways to Capture Java Heap Dumps 1. Introduction In this article, we’ll show different ways to capture a heap dump in Java. A heap dump is a snapshot of all the objects that are in memory in the JVM at a certain moment. They are very useful to troubleshoot… Continue Reading java-heap-dump-capture
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Check If Two Rectangles Overlap In Java 1. Overview In this quick tutorial, we’ll learn to solve an algorithmic problem of checking whether the two given rectangles overlap. We’ll start by looking at the problem definition and then progressively build up a solution. Finally, we’ll implement it in Java. 2.… Continue Reading java-check-if-two-rectangles-overlap
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A Guide to System.exit() 1. Overview In this tutorial, we’ll have a look at what System.exit means in Java. We’ll see its purposes, where to use and how to use it. We’ll also see what’s the difference in invoking it with different status codes. 2. What is System.exit? System.exit is… Continue Reading java-system-exit
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How to Separate Double into Integer and Decimal Parts Java 1. Overview In this tutorial, we’ll explore various methods to separate integer and decimal parts of floating-point types in Java, namely float and double. 2. Issues with Floating-Points Types Let’s start by looking at a simple fraction, and a naive way of… Continue Reading java-separate-double-into-integer-decimal-parts
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Sending Emails with Java 1. Overview In this quick tutorial, we’re going to look at sending an email with and without attachments – using the core Java mail library. 2. Project Setup and Dependency For this article, we’ll be using a simple Maven-based project with a dependency on the Java mail… Continue Reading java-email
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Fail-Safe Iterator vs Fail-Fast Iterator 1. Introduction In this article, we’ll introduce the concept of Fail-Fast and Fail-Safe Iterators. Fail-Fast systems abort operation as-fast-as-possible exposing failures immediately and stopping the whole operation. Whereas, Fail-Safe systems don’t abort an operation in the case of a failure. Such systems try to avoid… Continue Reading java-fail-safe-vs-fail-fast-iterator
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Bubble Sort in Java 1. Introduction In this quick article, we’ll explore the Bubble Sort algorithm in detail, focusing on a Java implementation. This is one of the most straightforward sorting algorithms; the core idea is to keep swapping adjacent elements of an array if they are in an incorrect… Continue Reading java-bubble-sort
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Displaying Money Amounts in Words 1. Overview In this tutorial, we’ll see how we can convert a monetary amount into words-representation in Java. We’ll also see how a custom implementation could look like, via an external library – Tradukisto. 2. Implementation Let’s first start with our own implementation. The first… Continue Reading java-money-into-words
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