/* Return true if the array contains, somewhere, three increasing adjacent * numbers like .... 4, 5, 6, ... or 23, 24, 25. */ public boolean tripleUp(int[] nums) { for(int i = 0; i <= nums.length - 3; i++) { if(nums[i] + 1 == nums[i+1] && nums[i+1] + 1 == nums[i+2]) return true; } return false; }