//这是一个保存对象的例子

import java.io.*;

import java.util.date;

public class serializedate {

  serializedate() {

    date d = new date ();

    try {

      fileoutputstream f =

          new fileoutputstream ("date.ser"); //输出到date.ser这个文件中

      objectoutputstream s =

          new objectoutputstream (f);

      s.writeobject (d); //写对象,将对象d写成是date.ser文件

      s.close ();        //关闭流

    } catch (ioexception e) {

      e.printstacktrace ();

    } }

  public static void main (string args[]) {

    new serializedate();

  }} 

import java.io.*;

import java.util.date;

public class unserializedate {

  unserializedate () {

    date d = null;

    try { //使用fileinputstream类

      fileinputstream f =

          new fileinputstream ("date.ser");

      objectinputstream s =

          new objectinputstream (f);

      d = (date) s.readobject ();//读对象

      s.close ();

    } catch (exception e) {

      e.printstacktrace (); }

    system.out.println(

      "从date.ser文件，读取date对象 ");

    system.out.println("日期是: "+d);

  }

  public static void main (string args[]) {

    new unserializedate();

  }}