Finding the middle element(s) of an array in Java

Question

Given an array of integers, I need to return a new array containing the middle element(s) from the original array. Specifically, the result will have one element if the length o

Answer 1

Try this code:

public int[] makeMiddle(int[] nums) {
    int[] a;
    if (nums.length %2 == 0) {
        // even-length array (two middle elements)
        a = new int[2];
        a[0] = nums[(nums.length/2) - 1];
        a[1] = nums[nums.length/2];
    } else {
        // odd-length array (only one middle element)
        a = new int[1];
        a[0] = nums[nums.length/2];
    }
    return a;
}

In your original code, you were not checking whether the length of nums be even or odd.