Chapter 13.1, Problem 13.8CP

Explanation of Solution

Changing fill color:

• The default color of all shapes is black.
• The method “setFill” changes fill color of a shape.
• The general format of “setFill” method is “setFill(color)”.
• If the circle is not be filled, then “null” is passed as parameter for “color”.
• The argument “color” denotes a “Paint” class object.
• The “Color” class is present in “javafx.scene.paint” package.
• It defines different constant fields that denote standard colors.
• The example for colors includes:
  • “Color.WHITE”
  • “Color.RED”
  • “Color.BLUE”
  • “Color...