Java > Array-1 > swapEnds (CodingBat Solution)

Problem:

Given an array of ints, swap the first and last elements in the array. Return the modified array. The array length will be at least 1.

swapEnds({1, 2, 3, 4}) → {4, 2, 3, 1}
swapEnds({1, 2, 3}) → {3, 2, 1}
swapEnds({8, 6, 7, 9, 5}) → {5, 6, 7, 9, 8}

Solution:

public int[] swapEnds(int[] nums) {
  int temp = nums[0];
  nums[0] = nums[nums.length-1];
  nums[nums.length-1] = temp;
  return nums;
}