Java Beginner57 articles

Optional is a Java class that provides a way to handle null values in a type-safe and efficient manner. It can help you avoid null pointer exceptions, simplify your code, and improve its readability and maintainability. This tutorial will cover the features and use cases of Optional in Java, with practical examples of how to use it for handling nulls

Foojay.io aims to be the starting point for “all-things OpenJDK”. The idea struck me that this site needs complete beginner materials, too!

After many discussions with Java developers, combined with my personal experiences with the Java community and platform, here are the key reasons why Java developers love Java after all these years!

JBang is a great way to create your first program to control electronic components connected to the Raspberry Pi’s GPIO pins.

On Java, thanks to the investments communities and Microsoft have been constantly making, VS Code has been used by more and more Java developers.

I will demonstrate how to create a simple Web Service using Spring Boot.  This framework makes it almost effortless to develop web services, so long as the appropriate dependencies are in place.

In this example, I will create a Web Service that will read the current temperature from a file and make it available to clients via a RESTful endpoint.