Chapter 27. Decorator// ??
Function brightness =
// ??
p.setXY(new T(), brightness);
com.oozinoz.ui.SwingFacade.launch(
p, " Brightness");
}
}
This code produces the plot in Figure 27.7.
Figure 27.7. A star's brightness peaks quickly and then tails off.CHALLENGE 27.4
Write the code to define a brightness object that represents the brightness
function.You can add other functions to the Function hierarchy as needed. For example, you might
add Random, Sqrt, and Tan classes. You can also create new hierarchies that work on
different types, such as strings, or that have a different notion of how to define the f()
operation. For example, you might define f() as a two- or three-dimensional function of
time. Regardless of the hierarchy you create, if you apply DECORATOR and you wrap