Caveman Number Count

import java.util.*;

class Caveman {

static String[] wordNumberList = { "ook", "ookook", "oog", "ooga", "ug", "mook", "mookmook", "oogam", "oogum", "ugug" };

public static void main(String[] args) {

Scanner scan = new Scanner(System.in);

while (scan.hasNext()) {

String s = scan.nextLine();

System.out.println(String.format("%s => %d", s, countNeanderthalWords(s)));

}

scan.close();

}

public static int countNeanderthalWords(String line) {

if (line.length() == 0) return 1;

int counter = 0;

for (String wordNumber : wordNumberList) {

if (line.startsWith(wordNumber)) {

counter += countNeanderthalWords(line.substring(wordNumber.length()));

}

}

return counter;

}

}