1 files changed, 83 insertions, 0 deletions
diff --git a/docs/dist/examples/bean/Demo.java b/docs/dist/examples/bean/Demo.java
new file mode 100644
index 000000000..767409878
--- /dev/null
+++ b/docs/dist/examples/bean/Demo.java
@@ -0,0 +1,83 @@
+/*
+
+Copyright (c) Xerox Corporation 1998-2002.  All rights reserved.
+
+Use and copying of this software and preparation of derivative works based
+upon this software are permitted.  Any distribution of this software or
+derivative works must comply with all applicable United States export control
+laws.
+
+*/
+package bean;
+
+import java.beans.*;
+import java.io.*;
+
+public class Demo implements PropertyChangeListener {
+
+    static final String fileName = "test.tmp";
+
+    /**
+     * when Demo is playing the listener role,
+     * this method reports that a propery has changed
+     */
+    public void propertyChange(PropertyChangeEvent e){
+	System.out.println("Property " + e.getPropertyName() + " changed from " +
+			   e.getOldValue() + " to " + e.getNewValue() );
+    }
+
+    /**
+     * main: test the program
+     */
+    public static void main(String[] args){
+	Point p1 = new Point();
+	p1.addPropertyChangeListener(new Demo());
+	System.out.println("p1 =" + p1);
+	p1.setRectangular(5,2);
+	System.out.println("p1 =" + p1);
+	p1.setX( 6 );
+	p1.setY( 3 );
+	System.out.println("p1 =" + p1);
+	p1.offset(6,4);
+	System.out.println("p1 =" + p1);
+	save(p1, fileName);
+	Point p2 = (Point) restore(fileName);
+	System.out.println("Had: " + p1);
+	System.out.println("Got: " + p2);
+    }
+
+    /**
+     * Save a serializable object to a file
+     */
+    static void save(Serializable p, String fn){
+	try {
+	    System.out.println("Writing to file: " + p);
+	    FileOutputStream fo = new FileOutputStream(fn);
+	    ObjectOutputStream so = new ObjectOutputStream(fo);
+	    so.writeObject(p);
+	    so.flush();
+	} catch (Exception e) {
+	    System.out.println(e);
+	    System.exit(1);
+	}
+    }
+
+    /**
+     * Restore a serializable object from the file
+     */
+    static Object restore(String fn){
+	try {
+	    Object result;
+	    System.out.println("Reading from file: " + fn);
+	    FileInputStream fi = new FileInputStream(fn);
+	    ObjectInputStream si = new ObjectInputStream(fi);
+	    return si.readObject();
+	} catch (Exception e) {
+	    System.out.println(e);
+	    System.exit(1);
+	}
+	return null;
+    }
+
+
+}