2020 | Baeldung

System.console() vs. System.out

Learn about the differences between System.console() and System.out. >>>

Setting Formulas in Excel with Apache POI

Learn how to set and evaluate Excel formulas in Java with Apache POI >>>

Using Mockito ArgumentCaptor

In this tutorial, we’ll cover a common use case of using Mockito ArgumentCaptor in our unit tests. >>>

Guide to SDKMAN!

Learn how to manage several versions of Java SDKs among other Java Ecosystem tools using SDKMAN! >>>

Java Weekly, Issue 344

Java is moving so fast! Java 15 is about to be released and we have two exciting news about Java 16. Also, some interesting topics on Security and Cloud. >>>

A Guide to BitSet in Java

Learn how we can use a Java BitSet to represent a vector of bits, gett familiar with the BitSet internals, and take a closer look at its API >>>

The Difference Between Cron Syntax in Linux and Spring

Learn the difference between Cron Syntax in Linux and Spring >>>

Command-Line Tools to Find the Java Heap Size

Learn how to use command line tools to find the heap size of a running Java application. >>>

Jess Rule Engine and JSR 94

Learn how to integrate the Jess rule engine into a Java application and how to use Jess with JSR 94, the Java Rule Engine API. >>>

Liskov Substitution Principle in Java

The L in SOLID, the Liskov Substitution Principle helps structure object oriented design. We also explore how it supports the Open/Closed Principle. >>>

Creating Docker Images with Spring Boot

Learn how to create Docker images for a Spring Boot application >>>

Converting List to Map With a Custom Supplier

Learn several ways to convert a List into a Map using Custom Suppliers. >>>

Performance Effects of Exceptions in Java

Java exceptions are considered expensive and shouldn’t be used for flow control. This tutorial will prove that this perception is correct. >>>

Java Weekly, Issue 343

Another step for Project Loom in Java 15 and Deprecating Biased Locking, Cool topics on Cloud, Microservices, and Istio. And finally some OS classics! >>>