package lesson_3; public class Frame_13 { public static void main(String[] args) { // TODO Auto-generated method stub int[] data = new int[] {1,2,3,4,5}; System.out.println(oddElementSum(data)); System.out.println(oddElementSum(new int[] {3,3,3,3,3,3})); System.out.println(oddElementSum(new int[] {})); System.out.println(oddElementSum(new int[] {0})); } static long oddElementSum(int[] data){ if ((data == null)||(data.length<2)) {return -1;} long sum=0; for (int index=1;index