From 33613a85afc4b1481367fbe92a17ee59c240250b Mon Sep 17 00:00:00 2001
From: Sven Eisenhauer <sven@sven-eisenhauer.net>
Date: Fri, 10 Nov 2023 15:11:48 +0100
Subject: add new repo

---
 .../hjp5/examples/Listing4111.java                 | 93 ++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 Master/Reference Architectures and Patterns/hjp5/examples/Listing4111.java

(limited to 'Master/Reference Architectures and Patterns/hjp5/examples/Listing4111.java')

diff --git a/Master/Reference Architectures and Patterns/hjp5/examples/Listing4111.java b/Master/Reference Architectures and Patterns/hjp5/examples/Listing4111.java
new file mode 100644
index 0000000..c847a7f
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/hjp5/examples/Listing4111.java	
@@ -0,0 +1,93 @@
+/* Listing4111.java */
+
+import java.io.*;
+import java.util.*;
+
+public class Listing4111
+{
+  public static Object seriaClone(Object o)
+  throws IOException, ClassNotFoundException
+  {
+    //Serialisieren des Objekts
+    ByteArrayOutputStream out = new ByteArrayOutputStream();
+    ObjectOutputStream os = new ObjectOutputStream(out);
+    os.writeObject(o);
+    os.flush();
+    //Deserialisieren des Objekts
+    ByteArrayInputStream in = new ByteArrayInputStream(
+      out.toByteArray()
+    );
+    ObjectInputStream is = new ObjectInputStream(in);
+    Object ret = is.readObject();
+    is.close();
+    os.close();
+    return ret;
+  }
+
+  public static void main(String[] args)
+  {
+    try {
+      //Erzeugen des Buchobjekts
+      Book book = new Book();
+      book.author = "Peitgen, Heinz-Otto";
+      String[] s = {"Jürgens, Hartmut", "Saupe, Dietmar"};
+      book.coAuthors = s;
+      book.title = "Bausteine des Chaos";
+      book.publisher = "rororo science";
+      book.pubyear = 1998;
+      book.pages = 514;
+      book.isbn = "3-499-60250-4";
+      book.reflist = new Vector();
+      book.reflist.addElement("The World of MC Escher");
+      book.reflist.addElement(
+        "Die fraktale Geometrie der Natur"
+      );
+      book.reflist.addElement("Gödel, Escher, Bach");
+      System.out.println(book.toString());
+      //Erzeugen und Verändern der Kopie
+      Book copy = (Book)seriaClone(book);
+      copy.title += " - Fraktale";
+      copy.reflist.addElement("Fractal Creations");
+      //Ausgeben von Original und Kopie
+      System.out.print(book.toString());
+      System.out.println("---");
+      System.out.print(copy.toString());
+    } catch (IOException e) {
+      System.err.println(e.toString());
+    } catch (ClassNotFoundException e) {
+      System.err.println(e.toString());
+    }
+  }
+}
+
+class Book
+implements Serializable
+{
+  public String author;
+  public String[] coAuthors;
+  public String title;
+  public String publisher;
+  public int    pubyear;
+  public int    pages;
+  public String isbn;
+  public Vector reflist;
+
+  public String toString()
+  {
+    String NL = System.getProperty("line.separator");
+    StringBuffer ret = new StringBuffer(200);
+    ret.append(author + NL);
+    for (int i = 0; i < coAuthors.length; ++i) {
+      ret.append(coAuthors[i] + NL);
+    }
+    ret.append("\"" + title + "\"" + NL);
+    ret.append(publisher + " " + pubyear + NL);
+    ret.append(pages + " pages" + NL);
+    ret.append(isbn + NL);
+    Enumeration e = reflist.elements();
+    while (e.hasMoreElements()) {
+      ret.append("  " + (String)e.nextElement() + NL);
+    }
+    return ret.toString();
+  }
+}
\ No newline at end of file
-- 
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