Reflection, or “A Class Named Class” - Java - page 941

*/
protected

protected void void startClass ( Class <?> c ) {

println ( "<class><classname>" + c . getName () + "</classname>" );

}

protected protected void void putField ( Field fld , Class <?> c ) {

println ( "<field>" + fld + "</field>" );

}

/** put a Method's information to the standard output.
* Marked protected so you can override it (hint, hint).
*/
protected protected void void putMethod ( Method method , Class <?> c ) {

println ( "<method>" + method + "</method>" );

}

/** Print the end of a class.
*/
protected

protected void void endClass () {

println ( "</class>" );

}

}

By the way, if you publish a book using either of these and get rich, “Remember, remember
me!”

Program: AppletViewer

Though I don't say much about applets in this edition of this topic, another JDK tool that can
be replicated is the AppletViewer . This uses the reflection package to load a class that is sub-
classed from Applet , instantiate an instance of it, and add() this to a frame at a given size.
Writing a replacement version of such a tool is a good example of reflection in action: you
can use these techniques to dynamically load any subclass of a given class. Suppose we have
a simple applet like HelloApplet in Example 23-23 .

Example 23-23. HelloApplet.java
public

public class class HelloApplet HelloApplet extends extends JApplet {

/** The flag which controls drawing the message. */
protected

protected boolean boolean requested ;

/** init() is an Applet method called by the browser to initialize */