code: private static void init() {
  		if (alFirstConsonants == null) {
  			alFirstConsonants = new ArrayList();
  			alLastConsonants = new ArrayList();
  			alMainVowels = new ArrayList();
  			alSecondaryVowels = new ArrayList();
  
  			initArrayList(alFirstConsonants, vnFirstConsonants);
  			initArrayList(alLastConsonants, vnLastConsonants);
  			initArrayList(alMainVowels, vnMainVowels);
  			initArrayList(alSecondaryVowels, vnSecondaryVowels);
  		}
  	}
docs: Inits the.