Java ByteBuffer.allocate() is a static method in the Java ByteBuffer class that allocates a new byte buffer with a specified capacity. It is commonly used to create buffers that can hold data for file I/O operations, network communication, or direct memory access. Introduced in Java 2007 with Java 7, allocate() is essential for handling binary data in an efficient manner in Java applications.

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