Cn2Spell Chinese characters are converted into Pinyin, English characters remain unchanged

package com.cmcc.util;

import net.sourceforge.pinyin4j.PinyinHelper;
import net.sourceforge.pinyin4j.format.HanyuPinyinCaseType;
import net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat;
import net.sourceforge.pinyin4j.format.HanyuPinyinToneType;
import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination;

/**
 * Chinese character conversion bit Hanyu Pinyin, English characters unchanged
 * @author xuke
 *
 */
public class Cn2Spell {
 
    /**
    * Chinese character conversion bit Hanyu Pinyin initials, English Characters unchanged
    * @param chines Chinese characters
    * @return Pinyin
    */
    public static String converterToFirstSpell(String chines){         
        String pinyinName = "";
        char[] nameChar = chines.toCharArray();
        HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
        defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
        defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
        for (int i = 0; i < nameChar.length; i++) {
            if (nameChar[i] > 128) {
                try {
                    pinyinName += PinyinHelper.toHanyuPinyinStringArray(nameChar[i], defaultFormat)[0].charAt(0);
                } catch (BadHanyuPinyinOutputFormatCombination e) {
                    e.printStackTrace();
                }
            }else{
                pinyinName += nameChar[i];
            }
        }
        return pinyinName;
    }
 
    /**
    * Chinese character conversion bit Hanyu Pinyin, English characters remain unchanged
    * @param chines Chinese character
    * @return Pinyin
    */
    public static String converterToSpell(String chines){         
        String pinyinName = "";
        char[] nameChar = chines.toCharArray();
        HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
        defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
        defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
        for (int i = 0; i < nameChar.length; i++) {
            if ( nameChar[i] > 128) {
                try {
                    pinyinName += PinyinHelper.toHanyuPinyinStringArray(nameChar[i], defaultFormat)[0];
                } catch (BadHanyuPinyinOutputFormatCombination e) {
                    e.printStackTrace();
                }
            }else{
                pinyinName += nameChar[i];
            }
        }
        return pinyinName;
    }
   
    public static void main(String[] args) {
        System.out.println(converterToSpell("测试下"));
        System.out.println(converterToFirstSpell("测试下"));
       
    }
}