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Review Summary
Great job on the overall structure of your ArrayList implementation! The logic is clean and the use of helper methods is excellent. However, this requires a change because a critical task constraint was not met. Your ensureCapacity method uses Arrays.copyOf, but the task explicitly forbids using the java.util.Arrays utility class [CHECKLIST ITEM #2]. To resolve this, please manually create a new array with the required capacity and then use System.arraycopy() to move the elements from the old array to the new one. After you make this adjustment, your solution will be in great shape!
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Footnotes
| @@ -1,48 +1,103 @@ | |||
| package core.basesyntax; | |||
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| import java.util.Arrays; | |||
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This violates checklist item #2: 'Don't use Objects, Arrays, or any other util class.' This class should not be imported or used in your implementation.
| if (newCapacity <= oldCapacity) { | ||
| newCapacity = oldCapacity + 1; | ||
| } | ||
| elements = Arrays.copyOf(elements, newCapacity); |
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This violates checklist item #2, which prohibits the use of the Arrays utility class. You should create a new array with the newCapacity and then use System.arraycopy() to copy the elements from the old elements array to the new one.
mateacademy-ai-mentor
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Review Summary
Excellent work! I am approving this solution. You've successfully addressed the previous feedback by replacing Arrays.copyOf with a manual array resizing implementation. Your code is now fully compliant with all task requirements, including the prohibition on using utility classes. The implementation is clean, well-structured, and correctly handles all specified behaviors. Great job!
✨ Please rate this review in the Platform's notification center1. I will be grateful for your feedback! ✨
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