public static void main(String[] args) { LetterToSound text = LetterToSound.getInstance(); System.out.println(Arrays.asList(text.getPhones("laggin", "n"))); System.out.println(Arrays.asList(text.getPhones("dragon", "n"))); System.out.println(Arrays.asList(text.getPhones("hello", "n"))); // System.out.println(Arrays.asList(text.getPhones("antelope", "n"))); }