public class Main { public static void main(String[] args) { int[] nums = {12, 5, 9, 21, 21, 7}; Integer first = null, second = null; for (int n : nums) { if (first == null || n > first) { second = first; first = n; } else if ((second == null || n > second) && n != first) { second = n; } } if (second != null) { System.out.println("Second largest: " + second); } else { System.out.println("No distinct second largest value."); } } }