如何在Java中编写返回整数数组中给定值最后一次出现的索引位置的程序？

public class Main {
    public static void main(String[] args) {
        int[] nums = {1, 2, 3, 4, 5, 4, 3, 2, 1};
        int target = 4;
        int lastIndex = findLastIndex(nums, target);
        System.out.println("最后一次出现的索引位置为：" + lastIndex);
    }
    
    public static int findLastIndex(int[] nums, int target) {
        int lastIndex = -1;
        for (int i = nums.length - 1; i >= 0; i--) {
            if (nums[i] == target) {
                lastIndex = i;
                break;
            }
        }
        return lastIndex;
    }
}