//: io/Worm.java

package io; /* Added by Eclipse.py */

// Demonstrates object serialization.

import java.io.*;

import java.util.*;

import static net.mindview.util.Print.*;

class Data implements Serializable {

private int n;

public Data(int n) { this.n = n; }

public String toString() { return Integer.toString(n); }

}

public class Worm implements Serializable {

private static Random rand = new Random(47);

private Data[] d = {

new Data(rand.nextInt(10)),

new Data(rand.nextInt(10)),

new Data(rand.nextInt(10))

};

private Worm next;

private char c;

// Value of i == number of segments

public Worm(int i, char x) {

print("Worm constructor: " + i);

c = x;

if(--i > 0)

next = new Worm(i, (char)(x + 1));

}

public Worm() {

print("Default constructor");

}

public String toString() {

StringBuilder result = new StringBuilder(":");

result.append(c);

result.append("(");

for(Data dat : d)

result.append(dat);

result.append(")");

if(next != null)

result.append(next);

return result.toString();

}

public static void main(String[] args)

throws ClassNotFoundException, IOException {

Worm w = new Worm(6, 'a');

print("w = " + w);

ObjectOutputStream out = new ObjectOutputStream(

new FileOutputStream("worm.out"));

out.writeObject("Worm storage\n");

out.writeObject(w);

out.close(); // Also flushes output

ObjectInputStream in = new ObjectInputStream(

new FileInputStream("worm.out"));

String s = (String)in.readObject();

Worm w2 = (Worm)in.readObject();

print(s + "w2 = " + w2);

ByteArrayOutputStream bout =

new ByteArrayOutputStream();

ObjectOutputStream out2 = new ObjectOutputStream(bout);

out2.writeObject("Worm storage\n");

out2.writeObject(w);

out2.flush();

ObjectInputStream in2 = new ObjectInputStream(

new ByteArrayInputStream(bout.toByteArray()));

s = (String)in2.readObject();

Worm w3 = (Worm)in2.readObject();

print(s + "w3 = " + w3);

}

} /* Output:

Worm constructor: 6

Worm constructor: 5

Worm constructor: 4

Worm constructor: 3

Worm constructor: 2

Worm constructor: 1

w = :a(853):b(119):c(802):d(788):e(199):f(881)

Worm storage

w2 = :a(853):b(119):c(802):d(788):e(199):f(881)

Worm storage

w3 = :a(853):b(119):c(802):d(788):e(199):f(881)

*///:~