передача объекта

class A implements Serializable{
    public byte value = 100;
}
public class Client {
    public static void main(String[] args){
        
        try{
             Socket fromserver = new Socket("localhost", 3128);
         BufferedOutputStream bos = new BufferedOutputStream(fromserver.getOutputStream());
         ObjectOutputStream oos = new ObjectOutputStream(bos);
         A obj = new A();
         oos.writeObject(obj);
         oos.flush();
         oos.close(); 
         fromserver.close();
 
        }catch(Exception e){}
    }
}

class A implements Serializable{
    public byte value = 0;
}
 
public class Server{
    public static void main(String[] args)throws IOException {
        System.out.println("Welcome to Server side");
    
ServerSocket servers = null;
Socket       fromclient = null;
 
    servers = new ServerSocket(3128);
 
System.out.print("Waiting for a client...");
fromclient= servers.accept();
System.out.println("\nClient connected!");
 
BufferedInputStream bis = new BufferedInputStream(fromclient.getInputStream());
ObjectInputStream ois = new ObjectInputStream(bis);
try{
    
A obj2 = (A) ois.readObject();
System.out.println("value: "+obj2.value);
}catch(Exception e){}
 
bis.close();
ois.close();
  servers.close();
  fromclient.close();
 
    }
}