Java ByteBuffer store double type data via DoubleBuffer and read
import java.nio.ByteBuffer; public class Main { private static final int BSIZE = 1024; public static void main(String[] args) { ByteBuffer bb = ByteBuffer.allocate(BSIZE); bb.rewind();//w w w . j a v a 2 s. c o m // Store and read a double: bb.asDoubleBuffer().put(123123.123123123D); System.out.println(bb.getDouble()); } }