How to read file in Java – BufferedInputStream

Here is another example to show how to read a file in Java with BufferedInputStream and DataInputStream classes.

The readLine() from the type DataInputStream is deprecated. Sun officially announced this method can not convert property from bytes to characters. It’s advised to use BufferedReader

You may interest to read this How to read file from Java – BufferedReader



package com.example.io;

import java.io.BufferedInputStream;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

public class BufferedInputStreamExample {

 public static void main(String[] args) {

  File file = new File("C:\\testing.txt");
  FileInputStream fis = null;
  BufferedInputStream bis = null;
  DataInputStream dis = null;

  try {
   fis = new FileInputStream(file);

   bis = new BufferedInputStream(fis);
   dis = new DataInputStream(bis);

   while (dis.available() != 0) {
    System.out.println(dis.readLine());
   }

  } catch (IOException e) {
   e.printStackTrace();
  } finally {
   try {
    fis.close();
    bis.close();
    dis.close();
   } catch (IOException ex) {
    ex.printStackTrace();
   }
  }
 }
}