Mean of Array After Removing Some Elements

Given an integer array arr, return the mean of the remaining integers after removing the smallest 5% and the largest 5% of the elements.

Answers within 10<sup>-5</sup> of the actual answer will be considered accepted.

LeetCode Problem - 1619

class Solution {
    public double trimMean(int[] arr) {
        Arrays.sort(arr); // Sort the array to easily trim the smallest and largest elements

        double size = arr.length; // Get the total number of elements in the array
        double five5Cent = size * (0.05); // Calculate 5% of the total size to determine how many elements to trim
        double sum = 0; // Initialize a variable to hold the sum of the remaining elements

        // Loop through the array from the 5% index to the end minus 5%
        for(int i = (int)five5Cent; i < size - (int)five5Cent; i++){
            sum += arr[i]; // Accumulate the sum of the remaining elements
        }

        // Return the mean of the remaining elements
        return (sum / (size - five5Cent * 2)); // Calculate mean by dividing sum by the count of remaining elements
    }
}