JAVA实现汉字转拼音缩写--类的静态方法

public class aaaaaaa {
/**
     * 汉字转拼音缩写
     * @param str   //要转换的汉字字符串
     * @return String   //拼音缩写
     */
     public static String getPYString(String str)
     {
             String tempStr = "";
             for(int i=0; i<str.length(); i++) {
                     char c = str.charAt(i);
                     if((int)c >= 33 && (int)c <=126) {//字母和符号原样保留
                             tempStr += String.valueOf(c);
                     }
                     else {//累加拼音声母
                             tempStr += getPYChar( String.valueOf(c) );
                     }
             }
             return tempStr;
     }
     /**
     * 取单个字符的拼音声母
     * @param c   //要转换的单个汉字
     * @return String 拼音声母
     */
     public static String getPYChar(String c)
     {
             byte[] array = new byte[2];
             array = String.valueOf(c).getBytes();
             int i = (short)(array[0] - '/0' + 256) * 256 + ((short)(array[1] - '/0' + 256));
             if ( i < 0xB0A1) return "*";
             if ( i < 0xB0C5) return "a";
             if ( i < 0xB2C1) return "b";
             if ( i < 0xB4EE) return "c";
             if ( i < 0xB6EA) return "d";
             if ( i < 0xB7A2) return "e";
             if ( i < 0xB8C1) return "f";
             if ( i < 0xB9FE) return "g";
             if ( i < 0xBBF7) return "h";
             if ( i < 0xBFA6) return "j";
             if ( i < 0xC0AC) return "k";
             if ( i < 0xC2E8) return "l";
             if ( i < 0xC4C3) return "m";
             if ( i < 0xC5B6) return "n";
             if ( i < 0xC5BE) return "o";
             if ( i < 0xC6DA) return "p";
             if ( i < 0xC8BB) return "q";
             if ( i < 0xC8F6) return "r";
             if ( i < 0xCBFA) return "s";
             if ( i < 0xCDDA) return "t";
             if ( i < 0xCEF4) return "w";
             if ( i < 0xD1B9) return "x";
             if ( i < 0xD4D1) return "y";
             if ( i < 0xD7FA) return "z";
             return "*";
     }
    
     public static void main(String []g){
     System.out.println(getPYString("中国，,;$#@&avc"));
     }

}