Stupid Suggestion System (https://leetcode.com/problems/search-suggestions-system/)

StupidSystem.kt

public static ArrayList<List<String>> suggestedProducts(String[] products, String searchWord) {
    ArrayList<List<String>> res = new ArrayList<>();
    List<String> sortedProducts = Arrays.asList(products);
    Collections.sort(sortedProducts);

    for (int charIndex = 1; charIndex <= searchWord.length(); charIndex++) {
        String currentInput = searchWord.substring(0, charIndex);
        ArrayList<String> subList = new ArrayList<>();
        int currentIndex = 0;
        while (currentIndex < sortedProducts.size()) {
            if (subList.size() == 3) break;

            if (sortedProducts.get(currentIndex).startsWith(currentInput)) {
                subList.add(sortedProducts.get(currentIndex));
            }
            currentIndex++;
        }
        res.add(subList);
    }

    return res;
}