Java DoubleBuffer is a class in Java's java.nio package that is used for reading and writing data in a non-blocking, buffered manner. It allows for efficient data processing by using two buffers, one for writing data and one for reading, reducing the need for synchronization and improving throughput. Introduced in Java 2007 with Java 7, DoubleBuffer is widely used in applications that require high-performance, low-latency I/O operations, such as in network programming and real-time data processing.

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