Java: reading utf-8 file page by page using FileInputStream

Question

I need some code that will allow me to read one page at a time from a UTF-8 file.

I've used the code;

 File fileDir = new File("DIRECTORY OF FILE");
 BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(fileDir), "UTF8"));
 String str;
 while ((str = in.readLine()) != null) {
        System.out.println(str);
   }
 in.close();
 } 

After surrounding it with a try catch block it runs but outputs the entire file! Is there a way to amend this code to just display ONE PAGE of text at a time? The file is in UTF-8 format and after viewing it in notepad++, i can see the file contains FF characters to denote the next page.

Answer 1

You will need to look for the form feed character by comparing to 0x0C.

For example:

char c = in.read();
while ( c != -1 ) {
   if ( c == 0x0C ) {
     // form feed
   } else {
     // handle displayable character
   }

   c = in.read();
}

EDIT added an example of using a Scanner, as suggested by Boris

    Scanner s = new Scanner(new File("a.txt")).useDelimiter("\u000C");
    while ( s.hasNext() ) {
        String str = s.next();

        System.out.println( str );
    }