Methods of the Applet Class

The class definitions of Applet methods, listed in the table below, are empty: They do nothing when called.
If you want these methods to do something, redefine the method (e.g., paint) in your applet's class definition.
The 1st line of your method must match that in the Table below.

Method	When the method is called, and its purpose
`public void init()`	Invoked when the applet is loaded. Typical actions include: initializing instance variables, GUI components, loading of sounds, or images, creation of threads.
`public void start()`	Invoked after `init()`, and whenever the browser returns to the web page on which applet resides. Actions include starting anything that would be stopped when the browser leaves the web page, such as animations.
`public void paint( Graphics g )`	Invoked after `init()` completes, and `start()` has started. Invoked automatically whenever applet needs to be repainted, such as when the applet becomes uncovered after the web page was obscured by some other window. Also invoked by `repaint()`, after it clears the effects of the previous `paint()` invocation.
`public void stop()`	Invoked when the applet should stop executing, typically when the browser leaves the web page on which the applet resides. Actions include stopping animations and threads.
`public void destroy()`	Invoked when the applet is being removed from memory, typically when the browser terminates. All active threads should be terminated, at this point.

resize( int width, int height)

This method is used to set the size of the applet at execution time (rather than at the time that the applet's web page is defined).

Imagine that we beefed up our RandomlyColoredBoard applet to include a TextField in which the user could specify NUM, where it is a NUM X NUM board. If we want each square to remain 40 pixels, then we can resize the applet (within limits) in response to the integer value of the TextField.

repaint()

This method invokes the method update, which erases all drawing, then invokes the paint method.

This is discussed in detail in Chapter 14 of our text book.