EaxmA QUESTION 36

QUESTION 36

Which code, inserted at line 14, will allow this class to correctly serialize and deserialize? ( 직렬화와 역직렬화가 되도록 아래의 코드를 완성 )

01. import java.io.*;

02. public class Foo implements Serializable {

03. public int x, y;

04. public Foo(int x, int y){

05. this.x = x; this.y = y;

06. }

07.

08. private void writeObject(ObjectOutputStream s)

09. throws IOException{

10. s.writeInt(x); s.writeInt(y);

11. }

12.

13. private void readObject(ObjectInputStream s)

14. throws IOException, ClassNotFoundException {

15. //insert code here

16. }

17. }

A. s.defaultReadObject();

B. this = s.defaultReadObject();

C. y = s.readInt(); x = s.readInt();

D. x = s.readInt(); y = s.readInt();

Correct Answer: D

해설

writeObject 메소드와 유사하게 readObject 메소드를 구현하면 됨.