how to count the exact number of words in a string that has empty spaces between words?

Question

Write a method called wordCount that accepts a String as its parameter and returns the number of words in the String. A word is a sequence of one or more nonspace characters

Answer 1

public static int wordCount(String s){
    int counter=0;
    for(int i=0;i<=s.length()-1;i++){
        if(Character.isLetter(s.charAt(i))){
            counter++;
            for(;i<=s.length()-1;i++){
                if(s.charAt(i)==' '){
                    i++;
                    break;
                }
            }
        }
    }
    return counter;
}

This is what you need if don't use the predefined function. I have tested it by myself. Please let me know if there is any bugs!