Chapter 13.2, Problem 13.20CP

Explanation of Solution

Duration class:

• The class “Duration” defines a time duration.
• The instances of “Duration” are immutable, it could be replaced.
• It could be created using constructor.
• The constructor “Duration (double mls)” creates a new duration with fractional millisecond revolution.
• The argument “duration” used in several methods denotes an object of “Duration” class and it specifies lasting time for an animation.
• The “Duration” class is present in “javafx.util.Duration” package...