How do I get any number of words from a string. And determine the beginning itself. Java

I want to be able to get any number of words back from a string and to be able to determine the beginning myself.

My code

    static String anyWords(String s, int amount, int from) {
    int spaces = 0;
    int i;
   
    for (i = 0; i < sentence.length() && spaces < amount; i++)
        if (sentence.charAt(i) == ' ') spaces++;
    return sentence.substring(0, i);
}

>Solution :

Try this out

static String anyWords(String s, int amount, int from) {
    int spaces = 0;
    int i;
    String[] stringArray = s.split(" ");
    StringBuilder sentence = new StringBuilder();
    for (int j = 0; j < from; j++)
        stringArray[j] = "";
    for (String value : stringArray)
        if (!Objects.equals(value, ""))
            sentence.append(value).append(" ");
    for (i = 0; i < sentence.length() && spaces < amount; i++)
        if (sentence.charAt(i) == ' ') spaces++;
    return sentence.substring(0, i);
}