import java.io.*;
public class Andmeproov4{
  public static void main(String[] arg) throws IOException{
     OutputStream fos=new ByteArrayOutputStream();
     DataOutputStream dos=new DataOutputStream(fos);
     dos.writeDouble(185.37);
     dos.close();
     byte[] bm=((ByteArrayOutputStream)fos).toByteArray();
     System.out.println(bm.length);
     InputStream fis=new ByteArrayInputStream(bm);
     DataInputStream dis=new DataInputStream(fis);
     System.out.println(dis.readDouble());
     dis.close();
  }
}