Read each line in a comma separated file into an array

Do you need help with your Java programming?

Click here for instant help with your Java code.

In this example we read the lines of a comma separated file and split the values into an array.
This is done fairly easy with the split() method, which takes a separator as an argument and returns
an array of Strings.

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

public class CsvTest {

  public void readFile() {

    BufferedReader br = null;

    try {

      br = new BufferedReader(new FileReader("thefile.csv"));
      String line = null;

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

        String[] values = line.split(",");

        //Do necessary work with the values, here we just print them out
        for (String str : values) {
          System.out.println(str);
        }
        System.out.println();
      }
    }
    catch (FileNotFoundException ex) {
      ex.printStackTrace();
    }
    catch (IOException ex) {
      ex.printStackTrace();
    }
    finally {
      try {
        if (br != null)
          br.close();
      }
      catch (IOException ex) {
        ex.printStackTrace();
      }
    }
  }

  public static void main(String[] args) {
    CsvTest test = new CsvTest();
    test.readFile();
  }
}

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

Search for code examples on this site

Need help with your Java code? It's secure and confidential.

This is how it works:

Send a detailed description of what you need help with, the more details the better. Also provide a deadline for when it has to be finished. More time means better chance of putting your request into the schedule.

If the request is serious you will shortly receive an email with the price, to which you have to respond if you accept.

Once you have accepted, the work will begin on developing your code by an experienced Java developer. When the code is finished a link to a secure payment will be sent to you.

The source code is then sent to you once the payment is completed.

IMPORTANT! The request needs to be very detailed, else it may be ignored.

Write your detailed request here:

E-mail address: