How to read files in Java ?

Example

Using BufferedInputStream and DataInputStream

File file = new File("C:\\readFile.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());

  }

  fis.close();

  bis.close();

  dis.close();

} catch (FileNotFoundException e) {

  e.printStackTrace();

} catch (IOException e) {

  e.printStackTrace();

}

Example

Using BufferedReader

try {
  String sCurrentLine;
  BufferedReader br = 
       new BufferedReader(new FileReader("C:\\readFile.txt"));

  while ((sCurrentLine = br.readLine()) != null) {
    System.out.println(sCurrentLine);
  } 
} catch (FileNotFoundException e) {
  e.printStackTrace();
} catch (IOException e) {
  e.printStackTrace();
}