Click here to watch in Youtube :
https://www.youtube.com/watch?v=68zVPj-H_B0&list=UUhwKlOVR041tngjerWxVccw

Click the below Image to Enlarge

Java Tutorial : Java IO (ByteArrayOutputStream write to multiplefiles)

ByteArrayOutputStreamDemo.java

import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class ByteArrayOutputStreamDemo
{

    public static void main(String[] args) throws IOException
    {
        FileOutputStream fileOutputStream1 = null;
        FileOutputStream fileOutputStream2 = null;
        ByteArrayOutputStream byteArrayOutputStream = null;
        try
        {
            fileOutputStream1 = new FileOutputStream("myfile1.txt");
            fileOutputStream2 = new FileOutputStream("myfile2.txt");
            byteArrayOutputStream = new ByteArrayOutputStream();

            String str = "Welcome to India";
            byte[] byteArray = str.getBytes();
            byteArrayOutputStream.write(byteArray);

            /*
             * Writes the complete contents of this byte
             * array output stream to the specified output
             * stream argument
             */
            byteArrayOutputStream.writeTo(fileOutputStream1);
            byteArrayOutputStream.writeTo(fileOutputStream2);

            byteArrayOutputStream.flush();
            System.out.println("successfully written to two files...");
        }
        finally
        {
            if (fileOutputStream1 != null)
            {
                fileOutputStream1.close();
            }
            if (fileOutputStream2 != null)
            {
                fileOutputStream2.close();
            }
            if (byteArrayOutputStream != null)
            {
                byteArrayOutputStream.close();
            }
        }
    }
}