填空题

下面程序段是从对象流中读取对象，请将程序补充完整。
import java.util.*;
import java.io.*;
public class UnSerializaDate
Date d=null;
UnSerializaDate()
try
FilelnputStream f=new FileInputStream("date.ser");
ObjectlnputStream s=new Obi ectInput Stream( f);
【13】
f.close();

catch(Exception e)
e.printStackTrace0;

public static void main(String args[])
UnSerializaDate a-new UnSerializaDate();
System. out.println("The date read is:"+a.d.toString0);