Read lines of text from a file with the BufferedReader class

This example shows how to read the contents of a file line by line.
By using the BufferedReader class we can read line-by-line without having to worry about
linebreaks. We just call it's readLine() method.

package je_test;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class FileUtil {

  public void readLinesFromFile(String filename) {

    BufferedReader br = null;

    try {

      br = new BufferedReader(new FileReader(filename));

      String line = null;
      while ((line = br.readLine()) != null) {

        //Process the line just read.
        //Here we just echo it to standard output.
        System.out.println(line);
      }
    }
    catch (IOException e) {
      e.printStackTrace();
    }
    finally {

      //Close the BufferedReader
      if (br != null) {
        try {
          br.close();
        }
        catch (IOException e) {
          e.printStackTrace();
        }
      }
    }

  }

  public static void main(String[] args) {
    FileUtil util = new FileUtil();
    util.readLinesFromFile("myfile.txt");
  }
}

Do you know your Java?
Take a Ten-Question-Java-Quiz!

Bookmark:

Search for code examples on this site