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Insertion Sort in Java 1. Overview In this tutorial, we’re going to discuss the Insertion Sort algorithm and have a look at its Java implementation. Insertion Sort is an efficient algorithm for ordering a small number of items. This method is based on the way card players sort a hand… Continue Reading java-insertion-sort
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Minification of JS and CSS Assets with Maven 1. Overview This article shows how to minify Javascript and CSS assets as a build step and serve the resulting files with Spring MVC. We will use YUI Compressor as the underlying minification library and YUI Compressor Maven plugin to integrate it… Continue Reading maven-minification-of-js-and-css-assets
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Guide to Spring Web Flow 1. Overview Spring Web Flow builds on Spring MVC and allows implementing flows within a web application. It’s used for creating sequences of steps that guide users through a process or some business logic. In this quick tutorial, we’ll go through a simple example of… Continue Reading spring-web-flow
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Java Web Weekly, Issue 116 At the very beginning of last year, I decided to track my reading habits and share the best stuff here, on Baeldung. Haven’t missed a review since. Here we go… 1. Spring and Java ===== >> Reactor Core 2.5 becomes a unified Reactive Foundation on… Continue Reading java-web-weekly-116
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Flattening Nested Collections in Java 1. Overview In this quick article, we’ll explore how to flatten a nested collection in Java. 2. Example of a Nested Collection Suppose we have a list of lists of type String. List<List<String>> nestedList = asList( asList(“one:one”), asList(“two:one”, “two:two”, “two:three”), asList(“three:one”, “three:two”, “three:three”, “three:four”)); 3.… Continue Reading java-flatten-nested-collections
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CORS in JAX-RS 1. Overview In this quick article, we’ll learn about how to enable CORS (Cross-Origin Resource Sharing) in a JAX-RS based system. We’ll set up an application on top of JAX-RS to enable CORS mechanism. 2. How to Enable CORS Mechanism There are two ways by which we… Continue Reading cors-in-jax-rs
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Operating on and Removing an Item from Stream 1. Overview In this quick tutorial, we’ll learn about the various ways in which we can operate on an item in a Java 8 stream and then remove it once the operation is complete. 2. Setup Let us define our Item object… Continue Reading java-use-remove-item-stream
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Weak References in Java 1. Overview In this article, we’ll have a look at the concept of a weak reference – in the Java language. We’re going to explain what these are, what they’re used for and how to work with them properly. 2. Weak References A weakly referenced object… Continue Reading java-weak-reference
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Round Up to the Nearest Hundred 1. Overview In this quick tutorial, we’ll illustrate how to round up a given number to the nearest hundred. For example: 99 becomes 100 200.2 becomes 300 400 becomes 400 2. Implementation First, we’re going to call Math.ceil() on the input parameter. Math.ceil() returns the smallest integer… Continue Reading java-round-up-nearest-hundred
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JSON Processing in Java EE 7 1. Overview This article will show you how to process JSON using only core Java EE, without the use of third-party dependencies like Jersey or Jackson. Pretty much everything we’ll be using is provided by the javax.json package. 2. Writing an Object to JSON… Continue Reading jee7-json
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