Java.io.ByteArrayOutputStream

package com.tutorialspoint;

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

public class ByteArrayOutputStreamDemo {
   public static void main(String[] args) throws IOException {

      String str = "";

      byte[] bs = {65, 66, 67, 68, 69};
      ByteArrayOutputStream baos = null;

      try{

         // create new ByteArrayOutputStream
         baos = new ByteArrayOutputStream();

         // write byte array to the output stream
         baos.write(bs);

         // converts buffers content using Cp1047 character set
         str = baos.toString("Cp1047");
         System.out.println(str);

         // converts buffers contents using UTF-8 character set
         str = baos.toString("UTF-8");
         System.out.println(str);

      }catch(Exception e){

         // if I/O error occurs
         e.printStackTrace();
      }finally{
         if(baos!=null)
            baos.close();
      }   
   }
}