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

http://docs.oracle.com/javase/7/docs/api/java/lang/String.html#split(java.lang.String)

Splits this string around matches of the given regular expression.