These are two NetBeans keyboard shortcuts that, seriously, are very cool. Once you know them magical things will start happening in your life.
Here's the first. Let's say my cursor is within a line, as below, and I get an error message because I don't have a semicolon (because I'm not using Groovy!):
I now press Ctrl-; (i.e., the Ctrl key plus the semicolon key). My cursor is now still in the same place as before, except that I have a semicolon at the end of the line:
Instead of that, if I press Ctrl-Shift-; (i.e., the Ctrl key plus the Shift key plus the semicolon key), from the same position as before, I not only get a semicolon, but the cursor finds itself automatically on the next line, indented according to the previous line's indentation:
Try it... you'll find magical things happening to your life. Like, you'll be coding faster and finishing your projects sooner so that you have more time to contribute tips like this one to NetBeans Zone!