Difficulty: Easy
Correct Answer: 5 10 15 20 25
Explanation:
Introduction / Context:The code multiplies each element of an integer array by 5, then prints the updated values. The ref keyword allows the method to receive a reference to the array, although arrays are reference types already.
Given Data / Assumptions:
Concept / Approach:Arrays are reference types; passing with ref is not required for modifying elements, but it permits reassigning the array variable itself. Here, only element values are changed.
Step-by-Step Solution:
a[0] = 1 * 5 = 5 → print 5.a[1] = 2 * 5 = 10 → print 10.a[2] = 3 * 5 = 15 → print 15.a[3] = 4 * 5 = 20 → print 20.a[4] = 5 * 5 = 25 → print 25.Verification / Alternative check:Run the loop manually or with a quick console application.
Why Other Options Are Wrong:
Common Pitfalls:Confusing element modification with creating a new array or power growth.
Final Answer:5 10 15 20 25
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