Can NetBeans remove trailing whitespace and change tabs to spaces on save?

Question

I just started to use NetBeans, and am trying to work out how to:

1. Make it so that trailing whitespace is removed on save. I know that you can invoke it manually

Answer 1

if you want to remove all trailing spaces in the file manually ONLY ONCE, you can invoke action 'Remove Trailing Spaces' from Source menu manually.

Source -> Remove Trailing Spaces