Gets byte array from a ByteBuffer in java

Question

Is this the recommended way to get the bytes from the ByteBuffer

ByteBuffer bb =..

byte[] b = new byte[bb.remaining()]
bb.get(b, 0, b.length);

Answer 1

Depends what you want to do.

If what you want is to retrieve the bytes that are remaining (between position and limit), then what you have will work. You could also just do:

ByteBuffer bb =..

byte[] b = new byte[bb.remaining()];
bb.get(b);

which is equivalent as per the ByteBuffer javadocs.