Introduction to how to obtain the first letter of Chinese Pinyin in Java

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is as follows:

import net.sourceforge.pinyin4j.PinyinHelper;

public class PinyinHelperUtil {

 /**
  * 得到中文首字母（中国 -> ZG）
  * @param str 需要转化的中文字符串
  * @return 大写首字母缩写的字符串
  */
 public static String getPinYinHeadChar(String str) {
  StringBuilder convert = new StringBuilder();
  for (int j = 0; j < str.length(); j++) {
   char word = str.charAt(j);
   String[] pinyinArray = PinyinHelper.toHanyuPinyinStringArray(word);
   if (pinyinArray != null) {
    convert.append(pinyinArray[0].charAt(0));
   } else {
    convert.append(word);
   }
  }
  return convert.toString().toUpperCase();
 }
 
}

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