剑指offer57 和为某数的两个数字 Java

public class SumEqualsNum57 {
    public static void main(String[] args) {
        int[] arr = {1, 2, 3, 5, 6, 7, 8, 9, 10};
        findTwo(arr, 14);
    }

    private static void findTwo(int[] arr, int sum) {
        int i = 0, j = arr.length - 1;
        while (i < j) {
            if (sum == arr[i] + arr[j]) {
                System.out.println(arr[i] + " " + arr[j]);
                return;
            } else if (sum > arr[i] + arr[j]) {
                ++i;
            } else {
                --j;
            }
        }
    }
}

解释：双指针思想