Java ByteBuffer is a class in Java's java.nio package that provides a container for binary data and allows for manipulation of data at the byte level. It supports both read and write operations on byte data, making it essential for high-performance I/O operations, such as working with files, network data, or memory-mapped buffers. Introduced in Java 2007 with Java 7, ByteBuffer simplifies data handling and improves performance in Java applications requiring low-level manipulation of bytes.

https://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html