read from inputstream and store in file. Java.

gistfile1.txt

/**
* read from input stream and store in file.
*/
InputStream in = .....
File file = File.createTempFile(filename,".dat");
FileOutputStream fos = new FileOutputStream(file,true);
byte[] b = new byte[4096];     
while(in.read(b, 0, 4096) != -1)
{
 fos.write(b,0,4096);
}
fos.flush();
fos.close();