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A good example of the overloading Norm suggests is demonstrate in Math (Java Platform SE 6)
For example, the abs/min/max methods have several methods which accept different primitives but accomplish...

java.lang is a default import so there is not need to explicitly import (give it a try and see). Your methods should define what they accept and the precision they require. If you need floating point...

If it is just a mathematical operation, define the method parameters as primitives which can be used directly for mathematical operations. Alternatively, you could pass something like a Number...