Change project structure to a Maven Java project + Refactor (#2816)

src/main/java/com/thealgorithms/maths/AbsoluteMax.java

@@ -0,0 +1,36 @@
+package com.thealgorithms.maths;
+
+import java.util.Arrays;
+
+/**
+ * description:
+ *
+ * <p>
+ * absMax([0, 5, 1, 11]) = 11, absMax([3 , -10, -2]) = -10
+ */
+public class AbsoluteMax {
+
+    public static void main(String[] args) {
+        int[] testnums = {-2, 0, 16};
+        assert absMax(testnums) == 16;
+
+        int[] numbers = {3, -10, -2};
+        System.out.println("absMax(" + Arrays.toString(numbers) + ") = " + absMax(numbers));
+    }
+
+    /**
+     * get the value, return the absolute max value
+     *
+     * @param numbers contains elements
+     * @return the absolute max value
+     */
+    public static int absMax(int[] numbers) {
+        int absMaxValue = numbers[0];
+        for (int i = 1, length = numbers.length; i < length; ++i) {
+            if (Math.abs(numbers[i]) > Math.abs(absMaxValue)) {
+                absMaxValue = numbers[i];
+            }
+        }
+        return absMaxValue;
+    }
+}