question: public static void writeFile ( InputStream inStream , OutputStream outStream ) throws IOException { try { byte [ ] buf = new byte [ BUFF_SIZE ] ; int len = inStream . read ( buf ) ; while ( len > 0 ) { outStream . write ( buf , 0 , len ) ; len = inStream . read ( buf ) ; } } finally { if ( inStream != null ) { inStream . close ( ) ; } if ( outStream != null ) { outStream . close ( ) ; } } }
target:  Method writes contents of file.