style: format code (#4212)

close #4204

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

@@ -25,7 +25,7 @@ public class RodCutting {
 
     // main function to test
     public static void main(String[] args) {
-        int[] arr = new int[] { 2, 5, 13, 19, 20 };
+        int[] arr = new int[] {2, 5, 13, 19, 20};
         int result = cutRod(arr, arr.length);
         System.out.println("Maximum Obtainable Value is " + result);
     }