Given the following method Is there a constraint on the value that can be passed

Question

Given the following method Is there a constraint on the value that can be passed as an argument for method to pass the smaller-caller test? Is exer(7) a valid call? If so, what is the returned from the method? Is exer(0) a valid call? If so, what is the returned from the method? Is exer(-5) a valid call? If so, what is the returned from the method? Given the following method Is there a constraint on the value that can be passed as an argument for method to pass the smaller-caller test? Is exer(7) a valid call? If so, what is the returned from the method? Is exer(0) a valid call? If so, what is the returned from the method? Is exer(-5) a valid call? If so, what is the returned from the method?

Explanation / Answer

a) yes, there is a constraint . num should be <= 0

b) exer(7) is not a valid call.

c) exer(0) is a valid call. and it returns 0 ;

d) exer(-5) is a valid call. and it returns -15;

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