与序列化有关的问题

[huyanqieyu]

import java.io.*;
public class Piped
{

public static void main(String[] args)
{InputStream i=null;
OutputStream i2=null;
ObjectInputStream oi=null;
ObjectOutputStream oi2=null;
try
{
i=new FileInputStream("E:/nn.txt");

i2=new FileOutputStream("E:/nn.txt");
}
catch(IOException e)
{
e.getMessage();
}




try
{
oi=new ObjectInputStream(i);

}
catch(IOException e)
{

}
try
{
oi2=new ObjectOutputStream(i2);
}
catch(IOException e)
{
e.printStackTrace();
}
try
{
oi2.writeObject(new Per(100));
oi2.close();

}
catch(IOException e)
{
e.getMessage();
}
Per p=null;

try
{
p=(Per)oi.readObject();
oi.close();

}
catch(Exception e)
{
e.getMessage();
}
p.pp();


}

}
class Per implements Serializable
{
int i;
public void pp()
{
System.out.println(i);
}

Per(int j)
{
i=j;
}

Per()
{
i=500;
}
}

[hmsuccess]

问题是什么

[roader2046]

[Quote=引用 1 楼 hmsuccess 的回复:]
问题是什么
[/Quote]
呵呵