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produce a class that will bundle together several static methods for tax computations. This class should not have a constructor.
produce a class that will bundle together several static methods for tax computations. This class should not have a constructor. Its attributes are
basicRate—the basic tax rate as a static double variable that starts at 4 percent
luxuryRate—the luxury tax rate as a static double variable that starts at 10 percent
Its methods are
computeCostBasic(price)—a static method that returns the given price plus the basic tax, rounded to the nearest penny.
ComputeCostLuxury(price)—a static method that returns the given price plus the luxury tax, rounded to the nearest penny.
changeBasicRateTo(newRate)—a static method that changes the basic tax rate.
changeLuxuryRateTo(newRate)—a static method that changes the luxury tax rate.
roundToNearestPenny(price)—a private static method that returns the given price rounded to the nearest penny. For example, if the price is 12.567, the method will return 12.57.
