Java.io.ObjectOutputStream.write Byte len() 方法

package com.codingdict;



import java.io.*;



public class ObjectOutputStreamDemo {



   public static void main(String[] args) {

      byte[] b = {'h', 'e', 'l', 'l', 'o'};



      try {



         // create a new file with an ObjectOutputStream

         FileOutputStream out = new FileOutputStream("test.txt");

         ObjectOutputStream oout = new ObjectOutputStream(out);



         // write something in the file

         oout.write(b, 0, 3);



         // close the stream

         oout.close();



         // create an ObjectInputStream for the file we created before

         ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt"));



         // read and print what we wrote before

         for (int i = 0; i < 3; i++) {

            System.out.print("" + (char) ois.readByte());

         }



      } catch (Exception ex) {

         ex.printStackTrace();

      }



   }

}