获取中文的首字母demo

import net.sourceforge.pinyin4j.PinyinHelper;
/**
	 * 
	 * @Title: getPinYinHeadChar
	 * @Description: TODO 获取中文的首字母
	 * @param str 传入的中文参数
	 * @return
	
	 * @return: String 
	 */
	public static String getPinYinHeadChar(String str) {
    String convert = "";
        for (int j = 0; j < str.length(); j++) {
            char word = str.charAt(j);
            String[] pinyinArray = PinyinHelper.toHanyuPinyinStringArray(word);
            if (pinyinArray != null) {
                convert += pinyinArray[0].charAt(0);
            } else {
                convert += word;
            }
        }
        return convert;
    }