Check If a Word Occurs As a Prefix of Any Word in a Sentence

Q - Given a sentence that consists of some words separated by a single space, and a searchWord, check if searchWord is a prefix of any word in sentence.

Return the index of the word in sentence (1-indexed) where searchWord is a prefix of this word. If searchWord is a prefix of more than one word, return the index of the first word (minimum index). If there is no such word return -1.

A prefix of a string s is any leading contiguous substring of s .

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class Solution {
    public int isPrefixOfWord(String sentence, String searchWord) {

        // Split the sentence into separate words
        String[] sentenceArray = sentence.split(" ");
        int sentenceLen = sentenceArray.length;
        int index = 0;

        // Go through each word in the sentence
        for (int i = 0; i < sentenceLen; i++) {
            // Check if the current word begins with the searchWord
            if (sentenceArray[i].startsWith(searchWord)) {
                // If it does, note down its position (adding 1 to match human counting)
                index = i + 1;
                break; // Stop looking, we found a match
            }
        }

        // If no match was found, return -1
        if (index == 0) {
            return -1;
        } else {
            // Otherwise, return the position of the word that starts with the searchWord
            return index;
        }
    }
}