Apache POI allows us to build Excel spreadsheets from Java code. In this tutorial we look at the steps for adding images to our spreadsheets.

A quick and practical guide to ByteBuffer -> String conversion in Java.

We may need to test whether the binary digits of a number are set. We explore how to do this for any digit in an integer, using some optimised binary maths as well as some simpler alternatives.

Learn which ports are opened by JMX on startup

Interested to learn about Jakarta MVC? Check our article explaining the insights of Jakarta MVC.

Interested to learn about Page Factory? Check our article explaining thoroughly about Page Object model and Page Factory in Selenium.

Interested to learn about Apache Log4j? Check our article explaining about Apache Log4j Vulnerability the log4shell.

Interested to learn about Log4Shell vulnerability? Check our article talking about the Log4Shell vulnerability and how to fix it.

Interested to learn about Java Program? Check our article presenting a Simple Java Program To Find Largest Of Three Numbers.

Interested to learn about exceptionininitializererror? Check our article explaining how to fix the error "Java lang exceptionininitializererror com sun tools javac code typetags" when working with maven build.

Interested to learn about Index? Check our article explaining how to insert or replace an element at a specified index into ArrayList java.

Happy New Year :) An interesting set of articles this week, from HTTP to persistence optimization and some Dilbert.

Learn how to configure Lombok.

Learn how to check if a String ends in a certain pattern in Java using core Java methods as well as Apache Commons Lang's StringUtils class.

Learn several ways to split a string after every n characters in Java.

A quick and practical guide to Java SequenceInputStream class.

Learn about the history of Java.

Java 17 provides a large number of improvements to the generation of random numbers. We explore the new API and compare it with the original random number generators.

Learn why we see an unknown source in our Java exception stack trace and how can we fix it.

State of Valhalla, Quarkus 2.6, Native Spring, new coroutine release, Qodana code quality, and the holy grail of keyboard layouts! A good way to end the year :)

Learn the differences between the equals() and the contentEquals() methods of the String class in Java using practical examples.