Tagged "Tutorial"

Recently, I was asked what the best way is to build a Fat JAR (a JAR with all dependencies) using Maven.

On the Pi4J discussion list, someone recently asked what the best and easiest way is in Java to convert a byte value.

Recently I have been experimenting with the combination of JavaFX and Kotlin. As Kotlin also runs on the Java Virtual Machine (JVM) and is a very close sister of Java, the switch is straightforward.

I was experimenting with a Java application that can act as a web server and includes the user interface HTML-files that get modified with htmx, to replace certain parts of the HTML with other ones created in Java.

At the Fosdem conference in Brussels on February 3rd, I gave a presentation about using an existing documentation set as the data for a ChatGPT-like application, created with JavaFX and LangChain4J.

One of the most “fancy” electronic components is definitely a LED strip. It’s really cool to control a long strip of lights with only a few lines of code… But, there is a problem.

To make it as easy as possible to get started with Java on the Raspberry Pi to interact with electronic components, I started a new section on the Pi4J website with JBang examples.

More than two years ago, I blogged about the use of the Raspberry Pi as an HDMI camera for the ATEM Mini.

Let’s take a look at the power and beauty of what Java Enums can provide…

Foojay.io aims to be the starting point for “all-things OpenJDK,” but during one of my morning walks the idea struck me that this site really needs complete beginner materials, too.

Exactly one year ago, in December 2021, I published three articles of MQTT messaging with Raspberry Pi, Raspberry Pi Pico and HiveMQ Cloud.

It has been a while since I last had to create documents in a program, and iText has been “on my radar” to try out for a while now.

If you create a new SD card for a Raspberry Pi with the operating system, you can choose the “Raspberry Pi OS Full (32-bit)” edition, which includes Java 11.

TL;DR; Yes, you can build your own Raspberry Pi HQ camera to use as an HDMI source for the ATEM Mini Looking for an affordable camera with HDMI output?

In the previous two posts in this series, we used Java on the Raspberry Pi mini-computer to send sensor data to HiveMQ Cloud, and visualize it on a dashboard.

In the previous post we started our discovery of HiveMQ Cloud with Java on the Raspberry Pi.

A few years ago I did my first experiments with an MQTT server (Mosquitto) running on a Raspberry Pi to connect an Arduino and Raspberry Pi for the drumbooth of my son.

The Raspberry Pi in combination with an inexpensive touch screen, makes a perfect controller for a machine or game console.

In a previous post “Getting Started with FXGL Game Development” we already have taken a look at the FXGL game development framework developed by Almas Baimagambetov.

On foojay.io you can already find two posts by Carl Dea to get you started with JavaFX:

Java Quick Start Is Java your first programming language and do you want to get up and running fast?