Programming

Java compound assignment operators (+=, -=, *=, /=) implicitly cast the promoted result back to the left-hand type, so i += j compiles without an explicit cast.

Learn how to undo the most recent local commits in Git using git reset (--soft, --mixed, --hard) or git revert. Step-by-step fixes for wrong files, recovery with reflog, and when to avoid rewriting history. No push needed.