Nio Key - Press Rewind Here

: Use built-in NIO methods like rewind() rather than manually setting positions to 0 to ensure the mark is correctly invalidated, preventing stale state errors.

: While flip() sets the limit to the current position before resetting the position to 0 (preparing to read what was just written), rewind() only resets the position, assuming the limit is already correct for the intended operation. Nio Key - Press Rewind

Re-reading or re-writing a buffer that has already been filled or flipped : Use built-in NIO methods like rewind() rather

In Java NIO, the rewind() method on a Buffer is used to reset the buffer's position to zero while keeping the limit unchanged, effectively allowing you to the data already contained in the buffer. NIO Buffer Report: "Press Rewind" Technical Summary Status / Description Action Performed buffer.rewind() Position Change Set to 0 Limit Change None (remains at current limit) Mark Status Discarded Primary Use Case NIO Buffer Report: "Press Rewind" Technical Summary Status