Java MappedByteBuffer: Memory-Mapped Files and MemorySegment
Java MappedByteBuffer guide. Map files with FileChannel.map(), read and write mapped memory, call force(), and map files over 2 GB with MemorySegment.
Java NIO Buffer Tutorial: ByteBuffer flip(), clear(), compact()
Java NIO buffer tutorial. Learn position, limit and capacity, flip(), clear(), compact(), mark(), slices, direct buffers and byte order with ByteBuffer.