/* Given an array of ints, return true if the array contains two 7's next * to each other, or there are two 7's separated by one element, such as * with {7, 1, 7}. */ public boolean has77(int[] nums) { for(int i = 0; i < nums.length - 1; i++) { if(nums[i] == 7 && nums[i+1] == 7) return true; if(i <= nums.length - 3 && nums[i] == 7 && nums[i+2] == 7) return true; } return false; }