Nio Key - Press Rewind (TRUSTED • 2025)

Re-reading or re-writing a buffer that has already been filled or flipped

Java NIO. For years, Java's traditional I/O… | by Kaustubh Saha Nio Key - Press Rewind

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 Re-reading or re-writing a buffer that has already

: 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. preventing stale state errors.