problems reading binary file

Hi

I having trouble reading a binary file. The problem seems to occur
with reading some float values so I've made a small test file (from
SQL server using native file output) that contains just 5 floats.

-13.73482 , 20.689 , -99.99999 , 20.157 ,1 9.454

I read the file in and write out the values using

           DataInputStream in = new DataInputStream(new
BufferedInputStream(new FileInputStream(filename)));
           System.out.print(ByteSwapper.swap(in.readFloat())+" ");
           System.out.print(ByteSwapper.swap(in.readFloat())+" ");
           System.out.print(ByteSwapper.swap(in.readFloat())+" ");
           System.out.print(ByteSwapper.swap(in.readFloat())+" ");
           System.out.println(ByteSwapper.swap(in.readFloat())+" ");

The output is -13.734822 20.689 6.9055E-41 20.157 19.454

ie -99.99999 is now 6.9055E-41.

I'm trying to read in a much larger SQL outgest of mixed data types
integers, longs, doubles, floats and bytes and the only problem I've
spotted is floats of -99.9999 (which is a deafult value used for some
columns)

It was necessary to byte swap and ByteSwapper.swap(float) is something
I find on the web an dis below.
I tries other byte swap code with the same result.

Any ideas what I'm doing wrong with the 3rd value and presumably in
general.

Python code of

binaryFile = file('test.bin', 'rb')
while True:
      rowBinary = binaryFile.read(20)
      if not rowBinary:
       break
      print struct.unpack('<5f', rowBinary)
binaryFile.close()

correctly gives -13.734822273254395, 20.688999176025391,
-99.999992370605469, 20.156999588012695, 19.454000473022461

java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_12-b04

Thanks
   Mike

  public static float swap (float value)
  {
    int intValue = Float.floatToIntBits (value);
    intValue = swap (intValue);
    return Float.intBitsToFloat (intValue);
  }

and

  public static int swap (int value)
  {
    int b1 = (value >> 0) & 0xff;
    int b2 = (value >> 8) & 0xff;
    int b3 = (value >> 16) & 0xff;
    int b4 = (value >> 24) & 0xff;

    return b1 << 24 | b2 << 16 | b3 << 8 | b4 << 0;
  }