Java skills are not only some of the most sought after but also some of the easiest to learn, and now you can acquire them quickly without taking time off from your current job or going into debt.

Interested in Java functional programming? The first place you need to start, especially if you use the Streams API, is with this Java Function interface example.

Build your own Java-based chatbot and get a feel for interacting with the ChatGPT API in a Java client.