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How do I know the read (offset) bytes of a BufferedReader?

I want to read a file line by line. BufferedReader is much faster than RandomAccessFile or BufferedInputStream. But the problem is that I do not know how many bytes I read. How do I know bytes read (offset)? I tried.

String buffer;
int offset = 0;

while ((buffer = br.readLine()) != null)
    offset += buffer.getBytes().length + 1; // 1 is for line separator

I work if the file is small. But, when the file becomes large, the offset becomes less than the actual value. How can I get the offset?

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3 answers

BufferedReader - : . Windows \r\n . Unix . BufferedReader , , readLine() , .

buffer.getBytes() , . byte[] ↔ String , , .

InputStream, . , , 5 , InputStream 4096, , .

NIO. ByteBuffer , CharBuffer .

+8

, , , int .

0

, :

import java.io.*;
class FileRead 
{
 public static void main(String args[])
  {
  try{
  // Open the file that is the first 
  // command line parameter
  FileInputStream fstream = new FileInputStream("textfile.txt");
  // Use DataInputStream to read binary NOT text.
  BufferedReader br = new BufferedReader(new InputStreamReader(fstream));
  String strLine;
  //Read File Line By Line
  while ((strLine = br.readLine()) != null)   {
  // Print the content on the console
  System.out.println (strLine);
  }
  //Close the input stream
  in.close();
    }catch (Exception e){//Catch exception if any
  System.err.println("Error: " + e.getMessage());
  }
  }
}

, !

:

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