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/* Listing4108.java */
import java.io.*;
import java.util.*;
public class Listing4108
{
public static void main(String[] args)
{
//Erzeugen der Familie
Person opa = new Person("Eugen");
Person oma = new Person("Therese");
Person vater = new Person("Barny");
Person mutter = new Person("Wilma");
Person kind1 = new Person("Fritzchen");
Person kind2 = new Person("Kalli");
vater.father = opa;
vater.mother = oma;
kind1.father = kind2.father = vater;
kind1.mother = kind2.mother = mutter;
//Serialisieren der Familie
try {
FileOutputStream fs = new FileOutputStream("test3.ser");
ObjectOutputStream os = new ObjectOutputStream(fs);
os.writeObject(kind1);
os.writeObject(kind2);
os.close();
} catch (IOException e) {
System.err.println(e.toString());
}
//Rekonstruieren der Familie
kind1 = kind2 = null;
try {
FileInputStream fs = new FileInputStream("test3.ser");
ObjectInputStream is = new ObjectInputStream(fs);
kind1 = (Person)is.readObject();
kind2 = (Person)is.readObject();
//�berpr�fen der Objekte
System.out.println(kind1.name);
System.out.println(kind2.name);
System.out.println(kind1.father.name);
System.out.println(kind1.mother.name);
System.out.println(kind2.father.name);
System.out.println(kind2.mother.name);
System.out.println(kind1.father.father.name);
System.out.println(kind1.father.mother.name);
//Name des Vaters �ndern
kind1.father.name = "Fred";
//Erneutes �berpr�fen der Objekte
System.out.println("---");
System.out.println(kind1.name);
System.out.println(kind2.name);
System.out.println(kind1.father.name);
System.out.println(kind1.mother.name);
System.out.println(kind2.father.name);
System.out.println(kind2.mother.name);
System.out.println(kind1.father.father.name);
System.out.println(kind1.father.mother.name);
is.close();
} catch (ClassNotFoundException e) {
System.err.println(e.toString());
} catch (IOException e) {
System.err.println(e.toString());
}
}
}
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