Java IO Tutorial - Java LineNumberInputStream .read (byte[] b, int off, int len)

Syntax

LineNumberInputStream.read(byte[] b, int off, int len) has the following syntax.

public int read(byte[] b, int off, int len)  throws IOException

Example

In the following code shows how to use LineNumberInputStream.read(byte[] b, int off, int len) method.

//from ww  w . j  av  a 2  s  .c om

import java.io.FileInputStream;
import java.io.IOException;
import java.io.LineNumberInputStream;

public class Main {
  public static void main(String[] args) throws IOException {

    byte[] buf = new byte[5];

    char c;

    FileInputStream fis = new FileInputStream("C:/test.txt");
    LineNumberInputStream lnis = new LineNumberInputStream(fis);

    int i = lnis.read(buf, 2, 3);
    System.out.println("The number of char read: " + i);

    for (byte b : buf) {
      if (b == 0)
        c = '-';
      else
        c = (char) b;

      System.out.print(c);
    }

  }
}