HanyuPinyinOutputFormat outputFormat = new HanyuPinyinOutputFormat();
// fix case type to lowercase firstly, change VChar and Tone
// combination
outputFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
// // WITH_U_AND_COLON and WITH_TONE_NUMBER
// outputFormat.setVCharType(HanyuPinyinVCharType.WITH_U_AND_COLON);
// outputFormat.setToneType(HanyuPinyinToneType.WITH_TONE_NUMBER);
// // WITH_V and WITHOUT_TONE
// outputFormat.setVCharType(HanyuPinyinVCharType.WITH_V);
outputFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
String[] arrs = new String[] { "强", "东", "李" };