Apple Stocks problem INTERVIEW QUESTION

// https://www.interviewcake.com/question/java/stock-price

public class Main{

    public static void main(String[] args) {
        int[] prices = {10, 9, 8, 7, 6, 5, 4, 3, 2, 1};
        System.out.println(getMaxProfit(prices));

    }

    public static int getMaxProfit(int[] stockPrices){
        int maxProfit = 0;
        if(stockPrices.length <= 1){
            throw new IllegalArgumentException();
        }

        int min = Integer.MAX_VALUE;
        int max = Integer.MIN_VALUE;

        int i = 0;
        int j = stockPrices.length - 1;

        while(i < j){
            if(stockPrices[i] < min){
                min = stockPrices[i];
            }
            if(stockPrices[j] > max){
                max = stockPrices[j];
            }
            i++;
            j--;
        }
        maxProfit = max - min;
        return maxProfit;
    }

}