Question

Write a program to write data into a file using FileOutputStream

Answer 1

Answer:

How to write to a file in java using FileOutputStream

BY CHAITANYA SINGH | FILED UNDER: JAVA I/O

Earlier we saw how to create a file in Java. In this tutorial we will see how to write to a file in java using FileOutputStream. We would be using write() method of FileOutputStream to write the content to the specified file. Here is the signature of write() method.

public void write(byte[] b) throws IOException

It writes b.length bytes from the specified byte array to this file output stream. As you can see this method needs array of bytes in order to write them into a file. Hence we would need to convert our content into array of bytes before writing it into the file.

Complete Code: Writing to a File

In the below example we are writing a String to a file. To convert the String into an array of bytes, we are using getBytes() method of String class.

import java.io.File;

import java.io.File;import java.io.FileOutputStream;

import java.io.File;import java.io.FileOutputStream;import java.io.IOException;

import java.io.File;import java.io.FileOutputStream;import java.io.IOException;public class WriteFileDemo {

import java.io.File;import java.io.FileOutputStream;import java.io.IOException;public class WriteFileDemo { public static void main(String[] args) {

import java.io.File;import java.io.FileOutputStream;import java.io.IOException;public class WriteFileDemo { public static void main(String[] args) { FileOutputStream fos = null;

import java.io.File;import java.io.FileOutputStream;import java.io.IOException;public class WriteFileDemo { public static void main(String[] args) { FileOutputStream fos = null; File file;

import java.io.File;import java.io.FileOutputStream;import java.io.IOException;public class WriteFileDemo { public static void main(String[] args) { FileOutputStream fos = null; File file; String mycontent = "This is my Data which needs" +

import java.io.File;import java.io.FileOutputStream;import java.io.IOException;public class WriteFileDemo { public static void main(String[] args) { FileOutputStream fos = null; File file; String mycontent = "This is my Data which needs" + " to be written into the file";

import java.io.File;import java.io.FileOutputStream;import java.io.IOException;public class WriteFileDemo { public static void main(String[] args) { FileOutputStream fos = null; File file; String mycontent = "This is my Data which needs" + " to be written into the file"; try {

import java.io.File;import java.io.FileOutputStream;import java.io.IOException;public class WriteFileDemo { public static void main(String[] args) { FileOutputStream fos = null; File file; String mycontent = "This is my Data which needs" + " to be written into the file"; try { //Specify the file path here

import java.io.File;import java.io.FileOutputStream;import java.io.IOException;public class WriteFileDemo { public static void main(String[] args) { FileOutputStream fos = null; File file; String mycontent = "This is my Data which needs" + " to be written into the file"; try { //Specify the file path here file = new File("C:/myfile.txt");

import java.io.File;import java.io.FileOutputStream;import java.io.IOException;public class WriteFileDemo { public static void main(String[] args) { FileOutputStream fos = null; File file; String mycontent = "This is my Data which needs" + " to be written into the file"; try { //Specify the file path here file = new File("C:/myfile.txt"); fos = new FileOutputStream(file);

import java.io.File;import java.io.FileOutputStream;import java.io.IOException;public class WriteFileDemo { public static void main(String[] args) { FileOutputStream fos = null; File file; String mycontent = "This is my Data which needs" + " to be written into the file"; try { //Specify the file path here file = new File("C:/myfile.txt"); fos = new FileOutputStream(file);

import java.io.File;import java.io.FileOutputStream;import java.io.IOException;public class WriteFileDemo { public static void main(String[] args) { FileOutputStream fos = null; File file; String mycontent = "This is my Data which needs" + " to be written into the file"; try { //Specify the file path here file = new File("C:/myfile.txt"); fos = new FileOutputStream(file);

import java.io.File;import java.io.FileOutputStream;import java.io.IOException;public class WriteFileDemo { public static void main(String[] args) { FileOutputStream fos = null; File file; String mycontent = "This is my Data which needs" + " to be written into the file"; try { //Specify the file path here file = new File("C:/myfile.txt"); fos = new FileOutputStream(file);

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