Longest Compound word

gistfile1.java

private boolean isCompoundWord(String word) {
                if (dictionary.contains(word)) return true;
                for (int i = 1; i < word.length(); i++) {
                        String prefix = word.substring(0, i);
                        if (isCompoundWord(prefix)) {
                                String remainder = word.substring(i, word.length());
                                if (remainder.length() == 0) return true;
                                return isCompoundWord(remainder);
                        }
                }
                return false;
        }