In this chapter, you learned how to develop a Java web application with NetBeans to control a GPIO-connected LED through the network. You followed s series of steps to install and configure s Jetty server on both NetBeans and the Raspberry Pi. Finally, you deployed the web application, which is the .war file generated by the build process, to the Jetty server running on the Raspberry Pi.
The Chapter 7, Security Camera with Face Recognition, presents how to use OpenCV and Java with the Raspberry Pi to develop a video application with face recognition that can be used to build a security camera.