How can you reverse the elements of a one-dimensional integer array int[] arr in Java?Choose the best approach.

hard📝 Application Q9 of 15

Java - Arrays

How can you reverse the elements of a one-dimensional integer array int[] arr in Java?

Choose the best approach.

ACreate a new array and copy elements in the same order.

BUse a loop to swap elements from start and end moving towards the center.

CSort the array using Arrays.sort(arr).

DAssign arr to another variable; it reverses automatically.

Step-by-Step Solution

Solution:

Step 1: Understand reversing an array
Reversing means swapping elements from the start and end moving inward.
Step 2: Evaluate options
Use a loop to swap elements from start and end moving towards the center. describes the correct approach using a loop to swap elements. Others do not reverse the array.
Final Answer:
Use a loop to swap elements from start and end moving towards the center. -> Option B
Quick Check:
Reversing requires swapping elements [OK]

Quick Trick: Swap elements from ends moving inward to reverse [OK]

Common Mistakes:

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