Java Word Counter

import java.util.Scanner;
public class CountAllWords {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String input = in.nextLine();
        input = input.replaceAll("\\W+", " ");
        String[] words = input.split(" ");
        int count = 0;

        for (String string : words) {
            count++;
        }
        System.out.println(count);
    }

}