Product of all positive integers

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Reference no: EM132167749

Write two classes (IterationTest & Iteration). The first class (IterationTest) has a main method that creates an instance of the other (Iteration) and executes the method factorial.

How write an iterative method called factorial in your Iteration class that calculates the factorial.

In mathematics, the factorial of a non-negative integer n, denoted by n!, is the product of all positive integers less than or equal to n.

Print the result of each factorial method to the console. Use 5 as the input value for each method.

5! = 5 x 4 x 3 x 2 x 1 = 120

Extra credit: Add the capability to ask the user for input and make sure what they have entered is a number.

Reference no: EM132167749

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