1. Wrapper objects: The wrapper classes also provide you with the ability to instantiate objects that are wrapped versions of primitive variables. For example, to create a wrapped version of the double number x, you can do this:

1. This creates an object of type Double, which is a wrapped version of the primitive variable, x. Then it assigns a reference to that object to the reference variable, xWrapped. The Double class has a number of prebuilt methods that work with Double objects. You can read about these methods in the Java API documentation on the Double class. The following code illustrates some of these methods:

What does each of the above print statements output, and why?

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double x 55.0; Double xWrapped = Double.value0f (x)