[Manal]

Most of the time I would just use gedit for coding on Ubuntu.

Sometimes I may use Notepad++ on Windows. Both of them have good color styling for many different programming languages.

The only IDE I would have to use is Android Studio, simply because I cannot find better alternative for developing native Android apps.

Same here. I use Notepad++ as it is reliable and easy to use and handle. Plus it doesn't even make my process lags.