<:> Points to note

Note use of the 'getSize()' applet method which returns a 'Dimension' object with 'width' and 'height' fields.

Note also the use the 'Color' contructor to construct a new Color object with randomised red/green/blue values (numbers between 0.0 and 1.0).

The drawing is done using calls on the 'Graphics' method 'fillOval' which takes as parameters the coordinates of the top, left corner of the oval, its width and its height.