Java > AP-1 > copyEvens (CodingBat Solution)

Problem:

Given an array of positive ints, return a new array of length "count" containing the first even numbers from the original array. The original array will contain at least "count" even numbers.

copyEvens({3, 2, 4, 5, 8}, 2) → {2, 4}
copyEvens({3, 2, 4, 5, 8}, 3) → {2, 4, 8}
copyEvens({6, 1, 2, 4, 5, 8}, 3) → {6, 2, 4}

Solution:

public int[] copyEvens(int[] nums, int count) {
  int ctr = 0;
  int[] array = new int[count];
  for (int i = 0; i < nums.length; i++) {
    if (nums[i] % 2 == 0) {
      array[ctr] = nums[i];
      ctr++;
    }
      if (ctr == count)
        return array;
  }
  return nums;
}