Java 常用工具类(2) : 提取汉字首字母工具类

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;

/**
* 提取汉字首字母工具类
* <p>Title: ChineseToFirstLetterUtil</p>
* <p>Description: </p>
* <p>Company: www.itcast.cn</p>
* @version 1.0
*/
public class ChineseToFirstLetterUtil {

public static String ChineseToFirstLetter(String c) {
String string = "";
char b;
int a = c.length();
for (int k = 0; k < a; k++) {
b = c.charAt(k);
String d = String.valueOf(b);
String str = converterToFirstSpell(d);
String s = str.toUpperCase();
String g = s;
char h;
int j = g.length();
for (int y = 0; y <= 0; y++) {
h = g.charAt(0);
string += h;
}
}
return string;
}

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++) {
String s = String.valueOf(nameChar[i]);
if (s.matches("[\\u4e00-\\u9fa5]")) {
try {
String[] mPinyinArray = PinyinHelper.toHanyuPinyinStringArray(nameChar[i], defaultFormat);
pinyinName += mPinyinArray[0];
} catch (BadHanyuPinyinOutputFormatCombination e) {
e.printStackTrace();
}
} else {
pinyinName += nameChar[i];
}
}
return pinyinName;
}

public static void main(String[] args) {
System.err.println(ChineseToFirstLetter("犯我中华者虽远必诛"));

}
}