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AP Computer Science A/Unit 10: Recursion
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Recursive Method Error Analysis
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Which of the following statements best describes the error in the faultySearch method and its consequence?

public class RecursionError {
    public static int faultySearch(int[] arr, int index, int key) {
        if(index >= arr.length) return -1;
        if(arr[index] == key) return index;
        return faultySearch(arr, index, key);
    }
    
    public static void main(String[] args) {
        int[] array = {1, 2, 3};
        System.out.println(faultySearch(array, 0, 2));
    }
}
A

The method incorrectly compares the key, but it will still eventually find the element.

B

The base case is missing, which would cause a compilation error.

C

The method fails to increment the index in the recursive call, causing infinite recursion and eventually a StackOverflowError.

D

The key comparison is reversed, leading to incorrect results.

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