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Add Multiple Items to an Java ArrayList 1. Overview of ArrayList In this quick tutorial, we’ll show to how to add multiple items to an already initialized ArrayList. For an introduction to the use of the ArrayList, please refer to this article here. 2. AddAll First of all, we’re going to… Continue Reading java-add-items-array-list
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Monitoring Disk Usage and Other Metrics in Java 1. Overview In this quick tutorial, we’ll be discussing how to monitor key metrics in Java. We’ll focus on disk space, memory usage, and thread data – using only core Java APIs. In our first example, we’ll make use of the File… Continue Reading java-metrics
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Differences Between Collection.clear() and Collection.removeAll() 1. Overview In this quick tutorial, we’ll learn about two Collection methods that might seem to do the same thing, but aren’t: clear() and removeAll(). We’ll first see the method definitions and then use them in short examples. 2. Collection.clear() We’ll first dive into the Collection.clear() method. Let’s check… Continue Reading java-collection-clear-vs-removeall
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Quick Guide to Micrometer 1. Introduction Micrometer provides a simple facade over the instrumentation clients for a number of popular monitoring systems. Currently, it supports the following monitoring systems: Atlas, Datadog, Graphite, Ganglia, Influx, JMX and Prometheus. In this article, we’ll introduce the basic usage of Micrometer and its integration… Continue Reading micrometer
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Java Web Weekly, Issue 147 A forward looking week a focus on reactive programming. Here we go… 1. Spring and Java ===== >> Project Valhalla: Goals [mail.openjdk.java.net] A very interesting read about the Java language itself and the direction it’s potentially heading into. >> Testing RxJava [infoq.com] Another very interesting… Continue Reading java-web-weekly-147
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My Weekly Reviews of 2014 Here’s a handy list of all my 2014 weekly reviews. Learned a lot about curation and picking the most helpful stuff I read this year: >> Baeldung Weekly Review 1 Interesting articles from week 1 of 2014. >> Baeldung Weekly Review 2 My takeaways from… Continue Reading 2014-week-reviews
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Logging a Reactive Sequence 1. Overview With the introduction of Spring WebFlux, we got another powerful tool to write reactive, non-blocking applications. While using this technology is now way easier than before, debugging reactive sequences in Spring WebFlux can be quite cumbersome. In this quick tutorial, we’ll see how to easily log… Continue Reading spring-reactive-sequence-logging
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Logging Exceptions Using SLF4J 1. Overview In this quick tutorial, we’ll show how to log exceptions in Java using the SLF4J API. We’ll use the slf4j-simple API as the logging implementation. You can explore different logging techniques in one of our previous articles. 2. Maven Dependencies First, we need to add… Continue Reading slf4j-log-exceptions
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Spring MVC + Thymeleaf 3.0: New Features 1. Introduction Thymeleaf is a Java template engine for processing and creating HTML, XML, JavaScript, CSS and plain text. For an intro to Thymeleaf and Spring, have a look at this write-up. In this article, we will discuss new features of Thymeleaf 3.0… Continue Reading spring-thymeleaf-3
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DynamoDB in a Spring Boot Application Using Spring Data 1. Overview In this article, we’ll explore the basics of integrating DynamoDB into a Spring Boot Application with a hands-on, practical example project. We’ll demonstrate how to configure an application to use a local DynamoDB instance using Spring Data. We’ll also… Continue Reading spring-data-dynamodb
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