Best practice for getting datatype size(sizeof) in Java

Question

I want store a list of doubles and ints to a ByteBuffer, which asks for a size to allocate. I\'d like to write something like C\'s syntax

int size=numDouble*size         


        

Answer 1

The size in Java is always the same. You can hardcode it but you only need to do this because you are working with bytes in a ByteBuffer. If you use double[] or DoubleBuffer you don't need these.