Programming boilerplate subject [on hold]

Hi guys I'm a developer who spend lot of time reading books and trying every days to learn new things (Like every developer I guess). However when it's time to practice it's difficult to find idea to code. I'm looking for some kind of boilerplate subject that can be coded in many languages to practice them and in the same way practice stuffs like how units tests are write in the chosen language. Any help and advice will be appreciate