When you move around in vim through jumping (either through movements [moving across text objects like matching parens/braces, or moving by way of the / search] or through tags [go to declaration, etc]) you have the ability to go back to the previous jump/location in the file from before you jumped somewhere.
I’m slowly learning how to move places in Eclipse, like jumping to the declaration of something, but is there any way to go back to the spot you were previously in a file?
From @Naveen’s link
ALT + ← : go to previous cursor position
ALT + → : go to next cursor position
Works with F3 (open type declaration) jumping!