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Which XXX completes the definition of the generic method, avgNum?
public class FindAverage { XXX { long tripleSum; tripleSum = item1.longValue() + item2.longValue() + item3.longValue(); return tripleSum / 3; } }
a. public static long avgNum(long item1, long item2, long item3)
b. public static long avgNum(TheType item1, TheType item2, TheType item3)
c. public static long avgNum(TheType item1, TheType item2, TheType item3)
d. public static avgNum(TheType item1, TheType item2, TheType item3)

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sandlee09

Answer:

Explanation:

The correct piece of code for the generic method in the question would be the following...

public static <TheType extends Number> long avgNum(TheType item1, TheType item2, TheType item3)

This declaration of the avgNum method declares this method as a Generic TheType method that is a subclass of the Number class. It also takes in generic parameters which are the same as the Generic class that was declared. Finally, outputting a long value which would be tripleSum / 3

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