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Java > Open Source Codes > nu > xom > samples > FibonacciFile


1 /* Copyright 2002, 2003 Elliotte Rusty Harold
2    
3    This library is free software; you can redistribute it and/or modify
4    it under the terms of version 2.1 of the GNU Lesser General Public
5    License as published by the Free Software Foundation.
6    
7    This library is distributed in the hope that it will be useful,
8    but WITHOUT ANY WARRANTY; without even the implied warranty of
9    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10    GNU Lesser General Public License for more details.
11    
12    You should have received a copy of the GNU Lesser General Public
13    License along with this library; if not, write to the
14    Free Software Foundation, Inc., 59 Temple Place, Suite 330,
15    Boston, MA 02111-1307 USA
16    
17    You can contact Elliotte Rusty Harold by sending e-mail to
18    elharo@metalab.unc.edu. Please include the word "XOM" in the
19    subject line. The XOM home page is located at http://www.xom.nu/
20 */
21
22 package nu.xom.samples;
23
24 import java.io.BufferedOutputStream JavaDoc;
25 import java.io.FileOutputStream JavaDoc;
26 import java.io.IOException JavaDoc;
27 import java.io.OutputStream JavaDoc;
28 import java.math.BigInteger JavaDoc;
29
30 import nu.xom.Document;
31 import nu.xom.Element;
32 import nu.xom.Serializer;
33
34 /**
35  * <p>
36  * Demonstrates the creation of a simple document
37  * in memory and saving it to a file.
38  * </p>
39  *
40  * @author Elliotte Rusty Harold
41  * @version 1.0
42  *
43  */
44 public class FibonacciFile {
45
46     public static void main(String JavaDoc[] args) {
47    
48         BigInteger JavaDoc low = BigInteger.ONE;
49         BigInteger JavaDoc high = BigInteger.ONE;
50       
51         Element root = new Element("Fibonacci_Numbers");
52         for (int i = 1; i <= 10; i++) {
53             Element fibonacci = new Element("fibonacci");
54             fibonacci.appendChild(low.toString());
55             root.appendChild(fibonacci);
56         
57             BigInteger JavaDoc temp = high;
58             high = high.add(low);
59             low = temp;
60           }
61           Document doc = new Document(root);
62         try {
63             OutputStream JavaDoc out = new FileOutputStream JavaDoc("fibonacci.xml");
64             out = new BufferedOutputStream JavaDoc(out);
65             Serializer serializer
66              = new Serializer(out, "ISO-8859-1");
67             serializer.write(doc);
68         }
69         catch (IOException JavaDoc ex) {
70             System.err.println("This shouldn't happen for Latin-1!");
71         }
72
73   }
74
75 }
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