I'm trying to learn file handling. Is it possible to practice file handling here at sololearn?

Answer 1

Within a single file, you can try..
As SL don't access local storage so you can't store in external and can't access external files, already existing file.
All codes works but access is limited to server. For example: you can create a file, it will be stored on SL auxiliary storage , and destoyed when you closed program. If you try to open the same file with another program then you get message as file not found. So all code works but memory operations don't result as you expect because of no memory actually...

Answer 2

yes, but you must create your file for each run in the beginning of your code, when code stops, file will loose