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a guest Nov 15th, 2019 86 Never
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  1. public class MainClass {
  2.  
  3.     // 0 1 2 3 4 5 6 7 8 9
  4.     // 10
  5.     // 10 / 2 = 5
  6.     // 5 - 1 = 4
  7.     public static void main(String[] args) {
  8.  
  9.     }
  10.  
  11.     private static int[] changeByDomainLogic(int[] array) {
  12.         if(checkIfArrayEven(array)) {
  13.             array[0] = sumOfSecondPart(array);
  14.         }
  15.         return array;
  16.     }
  17.    
  18.     private static int sumOfSecondPart(int[] array) {
  19.         int sum  = 0;
  20.         int mediumIndex = array.length / 2 - 1;
  21.         for(int i = mediumIndex + 1; i < array.length; i++) {
  22.             sum += array[i];
  23.         }
  24.         return sum;
  25.     }
  26.  
  27.     private static boolean checkIfArrayEven(int[] array) {
  28.         if(array.length == 0) return false;
  29.         return array.length % 2 == 0;
  30.     }
  31. }
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