import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
class Base {
int code = 99;
Base() {
code = 77;
}
}
public class Derived extends Base implements Serializable {
public static void main(String[] args) {
Derived derived1 = new Derived();
derived1.code = 88;
try {
FileOutputStream fos = new FileOutputStream("data.txt");
ObjectOutputStream os = new ObjectOutputStream(fos);
os.writeObject(derived1);
os.close();
FileInputStream fis = new FileInputStream("data.txt");
ObjectInputStream is = new ObjectInputStream(fis);
Derived derived2 = (Derived) is.readObject();
System.out.print(derived2.code);
is.close();
} catch (Exception x) {
}
}
}
