CSV File Write Line By Line

In the post I am going to explaining CSV file write line by line by using opencsv jar file. You can see what is CSV file?. Before going to write java program we need to download opencsv jar file.

OpenCsvWriter.java

/*
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 */
package com.narayanatutorial.opencsv;

import au.com.bytecode.opencsv.CSVWriter;
import java.io.FileWriter;

public class OpenCsvWriter {

    public static void main(String args[]) {
                String csvFilename = "D:/narayanatutorial/SampleFiles/OpenCSVWrite.csv";
        try {
            
            CSVWriter writer = new CSVWriter(new FileWriter(csvFilename));
            String[] profile = "Narayana,Ragi,'12345678901234569870,''".split(",");
            String[] header="FIRSTNAME,LASTNAME,AGE".split(",");
            writer.writeNext(header);
            writer.writeNext(profile);
            writer.close();
            System.out.println("CSV file created succesfully.");
        } catch (Exception e) {
            System.out.println("exception :" + e.getMessage());
        }

    }
}

Output

CSV file created succesfully.

You can open the csv file in the notepad and see the following output.

"FIRSTNAME","LASTNAME","AGE"
"Narayana","Ragi","'12345678901234569870","''"

you can find the above sample program in the github. If you have git account you can download from github and other sample programs also available and find the below github link to download. We used Netbeans IDE to develop sample programs. So you can directly import into Netbeans if you are having Netbeans else create sample project in your IDE and replace src folder.

Git link

I hope you understand CSV File Write Line By Line by using opencsv jar file.

Narayanaswamy

Hello! I am Narayanaswamy founder and admin of narayanatutorial.com. I have been working in the IT industry for more than 12 years. NarayanaTutorial is my web technologies blog. My specialties are Java / J2EE, Spring, Hibernate, Struts, Webservices, PHP, Oracle, MySQL, SQLServer, Web Hosting, Website Development, and IAM(ForgeRock) Specialist

I am a self-learner and passionate about training and writing. I am always trying my best to share my knowledge through my blog.