How did you use JAVA programming effectively/productively?

Question

JAVA programming for your daily routines, work environment and any other

Answer 1

by making Iot projects

Answer 2

By using JAVA, what programs/codes/projects/applications you had done for making your life better?

Answer 3

I use the Processing IDE to create graphical applets and export them as executables.
the tools and libraries available make the tasks easier. Usually I make stuff yhat takes care of boring repetitive tasks to increase my free time. And if I want them on Mobile there is an option to build and export apk for Android.
www.processing.org