public class Solution {
    public static int arrayMaximalAdjacentDifference(int[] a) {
        int dif = 0;
        for (int i = 1; i < a.length - 1; i++) {
            dif = Math.max(dif, Math.max(Math.abs(a[i] - a[i - 1]), Math.abs(a[i] - a[i + 1])));
        }

        return dif;
    }
}