学步园

public class GetFirstLetter {</p> <p> private static final int GB_SP_DIFF = 160;<br /> private static final int[] secPosvalueList = {<br /> 1601, 1637, 1833, 2078, 2274, 2302, 2433, 2594, 2787,<br /> 3106, 3212, 3472, 3635, 3722, 3730, 3858, 4027, 4086,<br /> 4390, 4558, 4684, 4925, 5249, 5600};<br /> private static final char[] firstLetter = {<br /> 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'j',<br /> 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's',<br /> 't', 'w', 'x', 'y', 'z'};</p> <p> public static String getFirstLetter(String oriStr) {<br /> String str = oriStr.toLowerCase();<br /> StringBuffer buffer = new StringBuffer();<br /> char ch;<br /> char[] temp;<br /> for (int i = 0; i < str.length(); i++) {<br /> ch = str.charAt(i);<br /> temp = new char[] {<br /> ch};<br /> byte[] uniCode = new String(temp).getBytes();<br /> if (uniCode[0] < 128 && uniCode[0] > 0) {<br /> buffer.append(temp);<br /> }<br /> else {<br /> buffer.append(convert(uniCode));<br /> }<br /> }<br /> return buffer.toString().substring(0,1);<br /> }</p> <p> private static char convert(byte[] bytes) {</p> <p> char result = '-';<br /> int secPosvalue = 0;<br /> int i;<br /> for (i = 0; i < bytes.length; i++) {<br /> bytes[i] -= GB_SP_DIFF;<br /> }<br /> secPosvalue = bytes[0] * 100 + bytes[1];<br /> for (i = 0; i < 23; i++) {<br /> if (secPosvalue >= secPosvalueList[i] &&<br /> secPosvalue < secPosvalueList[i + 1]) {<br /> result = firstLetter[i];<br /> break;<br /> }<br /> }<br /> return result;<br /> }</p> <p> public static void main(String s[]){</p> <p> System.out.print(getFirstLetter("好"));<br /> }</p> <p>