Java > Warmup-2 > arrayCount9 (CodingBat Solution)

Problem:

Given an array of ints, return the number of 9's in the array.

arrayCount9({1, 2, 9}) → 1
arrayCount9({1, 9, 9}) → 2
arrayCount9({1, 9, 9, 3, 9}) → 3

Solution:

public int arrayCount9(int[] nums) {
  int counter = 0;
  
  for (int i = 0; i < nums.length; i++){
    if (nums[i] == 9)
      counter++;
  }
  return counter;
}