Java.io.ByteArrayOutputStream.write() Byte Len 方

package com.codingdict;



import java.io.ByteArrayOutputStream;

import java.io.IOException;



public class ByteArrayOutputStreamDemo {



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

      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, 3, 2);



         // read all the bytes in the output stream

         for (byte b: baos.toByteArray()) {

            System.out.println(b);

         }



      } catch(Exception e) {



         // if I/O error occurs

         e.printStackTrace();

      } finally {

         if(baos!=null)

            baos.close();

      }   

   }

}