style: fix formatting

Author: Papichardog

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

@@ -16,8 +16,7 @@ public final class Average {
 
     // Prevent instantiation of this utility class
     private Average() {
-        throw new UnsupportedOperationException(
-                "This is a utility class and cannot be instantiated.");
+        throw new UnsupportedOperationException("This is a utility class and cannot be instantiated.");
     }
 
     /**
@@ -32,8 +31,7 @@ private Average() {
      */
     public static double average(double[] numbers) {
         if (numbers == null || numbers.length == 0) {
-            throw new IllegalArgumentException(
-                    "Numbers array cannot be empty or null");
+            throw new IllegalArgumentException("Numbers array cannot be empty or null");
         }
         double sum = 0;
         for (double number : numbers) {
@@ -54,8 +52,7 @@ public static double average(double[] numbers) {
      */
     public static long average(int[] numbers) {
         if (numbers == null || numbers.length == 0) {
-            throw new IllegalArgumentException(
-                    "Numbers array cannot be empty or null");
+            throw new IllegalArgumentException("Numbers array cannot be empty or null");
         }
         long sum = 0;
         for (int number : numbers) {