帮忙看看这个网络中传递类怎么不行？
Client:
import java.net.*;
import java.io.*;
class Info implements Serializable
{
int i;
int j;
public Info(int x,int y)
{
i=x;
j=y;
}
}
public class Client7
{
Info a;
ObjectOutputStream out;
Socket socket;
public Client7()
{
try
{
a.i=0;
a.j=1;
socket=new Socket( "127.0.0.1 ",7777);
out=new ObjectOutputStream(socket.getOutputStream());
out.writeObject(a);
}
catch(Exception e)
{
System.out.println( " no server ");
}


}
public static void main(String[] args)
{
Client7 aa=new Client7();
}


}

Server:
import java.net.*;
import java.io.*;
class Info implements Serializable
{
int i;
int j;
public Info(int x,int y)
{
i=x;
j=y;
}
}
public class Server7
{
Info b;
ObjectOutputStream out;
ObjectInputStream in;
Socket socket;
ServerSocket server;
public Server7()
{
try
{
server=new ServerSocket(7777);
socket=server.accept();
in=new ObjectInputStream(socket.getInputStream());
out=new ObjectOutputStream(socket.getOutputStream());
b=(Info)in.readObject();
System.out.println(b.i);
System.out.println(b.j);
}
catch(Exception e)
{
System.out.println( "no client ");
}
}
public static void main(String[] args)
{
Server7 bb=new Server7();
}
}
刚学网络，帮忙看看～！！

[解决办法]
public Info(int x,int y)
{
i=x;
j=y;
}


你这里提供了类的构造方法，

a.i=0;
a.j=1;

改为 a = new Info(0,1);
试下