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arrayMystery

Language/Type: Java arrays array mystery
Author: Whitaker Brand

Consider the following method:

public static void arrayMystery(int[] a) {
    for (int i = a.length - 1; i >= 0; i--) {
        if (a[i] == a[a.length - i - 1]) {
            a[i]++;
            a[a.length - i - 1]++;
        }
    }
}

Indicate in the right-hand column what values would be stored in the array after the method arrayMystery executes if each integer array below is passed as a parameter to it.

int[] a1 = {1, 8, 3, 8, 7}; arrayMystery(a1);
int[] a2 = {4, 0, 0, 4, 0, 0, 4, 0}; arrayMystery(a2);
int[] a3 = {9, 8, 7, 6, 4, 6, 2, 9, 9}; arrayMystery(a3);
int[] a4 = {42}; arrayMystery(a4);
int[] a5 = {5, 5, 5, 6, 5, 5, 5}; arrayMystery(a5);

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