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16 package org.ini4j.sample;
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33 import org.ini4j.IniPreferences;
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35 import java.io.FileInputStream;
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37 import java.util.prefs.*;
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39 public class ListenerSample
40 {
41 public static final String FILENAME = "dwarfs.ini";
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43 public static void main(String[] args) throws Exception
44 {
45 String filename = (args.length > 0) ? args[0] : FILENAME;
46 Preferences prefs = new IniPreferences(new FileInputStream(filename));
47 Listener listener = new Listener();
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49 prefs.addNodeChangeListener(listener);
50 Preferences jerry = prefs.node("jerry");
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52 jerry.addPreferenceChangeListener(listener);
53 jerry.put("color", "blue");
54 jerry.put("color", "gray");
55 jerry.putInt("age", 2);
56 }
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58 static class Listener implements NodeChangeListener, PreferenceChangeListener
59 {
60 public void childAdded(NodeChangeEvent event)
61 {
62 System.out.println("node added: " + event.getChild().name());
63 }
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65 public void childRemoved(NodeChangeEvent event)
66 {
67 System.out.println("node removed: " + event.getChild().name());
68 }
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70 public void preferenceChange(PreferenceChangeEvent event)
71 {
72 System.out.println("preference changed: " + event.getKey() + " = " + event.getNewValue());
73 }
74 }
75 }
76