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){
    if (s == null)
       return 0;
    return s.trim().split("\\s+").length;
}

Have fun with the function.