Fix: add newline at the end of RodCutting.java

Author: Chiefpatwal

src/main/java/com/thealgorithms/dynamicprogramming/RodCutting.java

@@ -25,6 +25,7 @@ public static int cutRod(int[] price, int n) {
         if (n < 0) {
             throw new IllegalArgumentException("Rod length cannot be negative.");
         }
+
         // Create an array to store the maximum obtainable values for each rod length.
         int[] val = new int[n + 1];
         val[0] = 0;
@@ -43,4 +44,5 @@ public static int cutRod(int[] price, int n) {
         // The final element of 'val' contains the maximum obtainable value for a rod of length 'n'.
         return val[n];
     }
-}
+}
+