How to read a file just from middle?

Question

I want to read a file which has 200,000 lines. And I want to read it from 100,000, but I don't want to read it from begining. So I use LineNumberReader class, but it failed. The code:
LineNumberReader lnr=new LineNumberReader(new InputStreamReader(src_lob.getBinaryStream()));
         lnr.setLineNumber(5);
         String line="";
         while((line=lnr.readLine())!=null)
                 System.out.println(line);
         } How to change the code???

Answer 1

Random Access File will be good option I think
filelength=RandomAccessFile.length();
raf.seek(filelength/2);
then read file characters