// Read space-delimited file of integers
// Convert from ASCII to internal binary

...
BufferedReader in =
new BufferedReader(new FileReader( "C:\\temp\\foo.in" ), 4096 /* buffsize */ );
String aLine = in.readLine();
StringTokenizer st = new StringTokenizer(aLine);
// process one line worth of space-delimited integers
while ( st.hasMoreTokens() )
   {
   String s = st.nextToken();
   int i = Integer.parseInt(s);
   out.println(i);
   } // end while