» » » How to create csv file in java using filewriter

  • We can create CSV file and fill some data in to it using java program.
  • We can create CSV file and write data int to CSV file using java.io.FileWriter class.
  • Creating object of java.io.FileWriter class by giving output filename.
  • After creating object of java.io.FileWriter append data by calling append("data") method of FileWriter class object.
  • Use append('\n'); for enter data in new row.
  • Lets see a java example program on how to create csv file and write data in to it using FileWriter Class.



Program #1: Java program to create CSV file using FileWriter class

  1. package com.java.createcsvfile;

  2. import java.io.FileWriter;
  3. import java.io.IOException;

  4. public class CreateCsvFile {

  5. private static void generateCsvFile(String fileName) {

  6.       FileWriter writer = null;

  7.  try {

  8.      writer = new FileWriter(fileName);
  9.      writer.append("Name");
  10.      writer.append(',');
  11.      writer.append("Number");
  12.      writer.append('\n');

  13.      writer.append("interview questions");
  14.      writer.append(',');
  15.      writer.append("001");
  16.      writer.append('\n');

  17.   writer.append("interview programs");
  18.   writer.append(',');
  19.   writer.append("002");
  20.   writer.append('\n');

  21.   System.out.println("CSV file is created...");

  22.   } catch (IOException e) {
  23.   e.printStackTrace();
  24.   } finally {
  25.         try {
  26.    writer.flush();
  27.    writer.close();
  28.         } catch (IOException e) {
  29.    e.printStackTrace();
  30. }
  31. }
  32. }

  33. public static void main(String[] args) {

  34. String location = "E:\\newCsvFile.csv";
  35. generateCsvFile(location);

  36. }

  37. }

 Output:


create csv file in java

Instance Of Java

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