About Base 64 Encoding

 What is base64 encoding?

• It is a way of encoding/decoding  the binary data.
• It represents binary data in ASCII format.

What are the benefits of base64 encoding?

• It is used in email systems,
  As most of the email system allows transmission 6to 7 bits. Base 64 encoding allows 8bit data to transmit in these systems.

   What is apache common codec?

  This library provides base64 encoding and decoding.
  The download link :-
  http://commons.apache.org/codec/download_codec.cgi

  Demo Details:-

  Encode an image to ASCII string and then reproducing it in another image.here the obj.jpg encoded to base64 ascii string, then through apache io util converted to obj1.jpg.

  package com.surabhi.base64;
  
  import java.io.File;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import org.apache.commons.codec.binary.Base64;
  import org.apache.commons.io.FileUtils;
  import org.apache.commons.io.IOUtils;
  
  public class Base64Demo {
  
   /**
    * @param args
    */
   public static void main(String[] args) {
  
    File file = new File("D:\obj.jpg");
    
    try {
     byte buffer[]=FileUtils.readFileToByteArray(file);
     String ascii=Base64.encodeBase64String(buffer);
     System.out.println(ascii);
     File file2=new File("D:\obj1.jpg");
     FileOutputStream fos=new FileOutputStream(file2);
     
     IOUtils.write(Base64.decodeBase64(ascii), fos);
     fos.flush();
     fos.close();
     //FileUtils.readFileToByteArray(file);
    } catch (IOException e) {
     e.printStackTrace();
    }
    
    
   }
  }