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 ) { } }}