Test Index

Java IO Serialization

Question : 13

Total: 17

Given:

import java.io.*;
class Player {
  Player() { System.out.print("p"); }
}
class CardPlayer extends Player implements Serializable {
  CardPlayer() { System.out.print("c"); }
  public static void main(String[] args) {
   CardPlayer c1 = new CardPlayer();
   try {
    FileOutputStream fos = new FileOutputStream("play.txt");
    ObjectOutputStream os = new ObjectOutputStream(fos);
    os.writeObject(c1);
    os.close();
    FileInputStream fis = new FileInputStream("play.txt");
    ObjectInputStream is = new ObjectInputStream(fis);
CardPlayer c2 = (CardPlayer) is.readObject();
    is.close();
   } catch (Exception x ) { }
  }
}

What is the result?

pc
pcc
pcp
pcpc
Compilation fails.
An exception is thrown at runtime.

Validate

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