How to read a file from directory?

import java.io.BufferedReader;

import java.io.FileReader;

import java.io.IOException;

public class FileReaderClass {

public static void main(String[] args) {

//Create BufferedReader Class

BufferedReader bufferReader = null;

try {

//Declare varibale for line number 

String lineNumber;

//Opening the file

bufferReader = new BufferedReader(new FileReader("C:\\file_to_read.txt"));

//Print all rows of file till last row

while ((lineNumber = bufferReader.readLine()) != null) {

System.out.println(lineNumber);

}

} catch (IOException e) {

e.printStackTrace();

} finally {

try {

//Closing bufferReader object

if (bufferReader != null)

{

bufferReader.close();

}

} catch (IOException e) {

e.printStackTrace();

}

}

}

}