Writing common data to multiple files using ByteArrayOutputStream

// Java ByteArrayOutputStream class is used to write common data into multiple files.

// In this stream, the data is written into a byte array which can be written to

// multiple streams later.

// The ByteArrayOutputStream holds a copy of data and forwards it to multiple streams.

// The buffer of ByteArrayOutputStream automatically grows according to data.

import java.io.ByteArrayOutputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

class ByteArrayOutputStreamDemo {

public static void main(String[] args)

throws FileNotFoundException, IOException {

FileOutputStream fos1 = new FileOutputStream("a.txt");

FileOutputStream fos2 = new FileOutputStream("b.txt");

ByteArrayOutputStream baos = new ByteArrayOutputStream();

String s = "I am learning Input Output Stream";

byte b[] = s.getBytes();

baos.write(b);

baos.writeTo(fos1);

baos.writeTo(fos2);

baos.flush();

baos.close();

fos1.close();

fos2.close();

System.out.println("Data copied in both files Successfully");

}

}