中文字符串怎么比较大小

Question

a.compareTo(b)
a<b -1
a=b 0
a>b 1

Answer 1

同意nimifeng(现在只想学点东西)

Answer 2

public class CompareChinese
{
public static void main(String[] args)
{
String s1="张三";
String s2="李四";
System.out.println(s1.compareTo(s2));
}
};得出结果是：
－2094请高手解答一下吧

Answer 3

直接compareTo肯定不对拉需要字典是怎么回事啊？ 用什么字典？

Answer 4

字典是怎么回事？？
简单举个例子：
  比如数据库有一个这样的表： 
    汉字  拼音 
    张    zhang
    李    li
    三    san
    四    si
   .
   .
就是字典表啊！ 查 “张三” 的拼音为：“zhangsan”；再查“李四”为：“lisi”好了，比较"zhangsan"和"lisi" 谁都会8！

Answer 5

具体挺麻烦的，给你段代码，原来水木清华bbs java版上的，是将汉字转为汉语拼音，稍加修改就可以满足你的要求，源代码比较长，不能一次帖上来，分几次帖（注意：一共在一个类里面）

Answer 6

import sun.io.CharToByteConverter;
/**
 * Powered by zms
 * 可以随便引用，修改
 * 但请保留此Powered by zms标志 
 */
public class Chinese1 {
        private static String[] data1;
        private static int[] data2;
        private static int length=397;
        private static CharToByteConverter converter;
        static {
                data1=new String[length];
                data2=new int[length];
                data1[0]="a";
                data2[0]=20319;
                data1[1]="ai";
                data2[1]=20317;
                data1[2]="an";
                data2[2]=20304;
                data1[3]="ang";
                data2[3]=20295;
                data1[4]="ang";
                data2[4]=20295;
                data1[5]="ao";
                data2[5]=20292;
                data1[6]="ba";
                data2[6]=20283;
                data1[7]="bai";
                data2[7]=20265;
                data1[8]="ban";
                data2[8]=20257;
                data1[9]="bang";
                data2[9]=20242;
                data1[10]="bao";
                data2[10]=20230;
                data1[11]="bei";
                data2[11]=20051;
                data1[12]="ben";
                data2[12]=20036;
                data1[13]="beng";
                data2[13]=20032;
                data1[14]="bi";
                data2[14]=20026;
                data1[15]="bian";
                data2[15]=20002;
                data1[16]="biao";
                data2[16]=19990;
                data1[17]="bie";
                data2[17]=19986;
                data1[18]="bin";
                data2[18]=19982;
                data1[19]="bing";
                data2[19]=19976;
                data1[20]="bo";
                data2[20]=19805;
                data1[21]="bu";
                data2[21]=19784;
                data1[22]="ca";
                data2[22]=19775;
                data1[23]="cai";
                data2[23]=19774;
                data1[24]="can";
                data2[24]=19763;
                data1[25]="cang";
                data2[25]=19756;
                data1[26]="cao";
                data2[26]=19751;
                data1[27]="ce";
                data2[27]=19746;
                data1[28]="ceng";
                data2[28]=19741;
                data1[29]="cha";
                data2[29]=19739;
                data1[30]="chai";
                data2[30]=19728;
                data1[31]="chan";
                data2[31]=19725;
                data1[32]="chang";
                data2[32]=19715;
                data1[33]="chao";
                data2[33]=19540;
                data1[34]="che";
                data2[34]=19531;
                data1[35]="chen";
                data2[35]=19525;
                data1[36]="cheng";
                data2[36]=19515;
                data1[37]="chi";
                data2[37]=19500;
                data1[38]="chong";
                data2[38]=19484;
                data1[39]="chou";
                data2[39]=19479;
                data1[40]="chu";
                data2[40]=19467;
                data1[41]="chuai";
                data2[41]=19289;
                data1[42]="chuan";
                data2[42]=19288;
                data1[43]="chuang";
                data2[43]=19281;
                data1[44]="chui";
                data2[44]=19275;
                data1[45]="chun";
                data2[45]=19270;
                data1[46]="chuo";
                data2[46]=19263;
                data1[47]="ci";
                data2[47]=19261;
                data1[48]="cong";
                data2[48]=19249;
                data1[49]="cou";
                data2[49]=19243;
                data1[50]="cu";
                data2[50]=19242;
                data1[51]="cuan";
                data2[51]=19238;
                data1[52]="cui";
                data2[52]=19235;
                data1[53]="cun";
                data2[53]=19227;
                data1[54]="cuo";
                data2[54]=19224;
                data1[55]="da";
                data2[55]=19218;
                data1[56]="dai";
                data2[56]=19212;
                data1[57]="dan";
                data2[57]=19038;
                data1[58]="dang";
                data2[58]=19023;
                data1[59]="dao";
                data2[59]=19018;
                data1[60]="de";
                data2[60]=19006;
                data1[61]="deng";
                data2[61]=19003;
                data1[62]="di";
                data2[62]=18996;
                data1[63]="dian";
                data2[63]=18977;
                data1[64]="diao";
                data2[64]=18961;
                data1[65]="die";
                data2[65]=18952;
                data1[66]="ding";
                data2[66]=18783;
                data1[67]="diu";
                data2[67]=18774;
                data1[68]="dong";
                data2[68]=18773;
                data1[69]="dou";
                data2[69]=18763;
                data1[70]="du";
                data2[70]=18756;
                data1[71]="duan";
                data2[71]=18741;
                data1[72]="dui";
                data2[72]=18735;
                data1[73]="dun";
                data2[73]=18731;
                data1[74]="duo";
                data2[74]=18722;
                data1[75]="e";
                data2[75]=18710;
                data1[76]="en";
                data2[76]=18697;
                data1[77]="er";
                data2[77]=18696;
                data1[78]="fa";
                data2[78]=18526;
                data1[79]="fan";
                data2[79]=18518;
                data1[80]="fang";
                data2[80]=18501;
                data1[81]="fei";
                data2[81]=18490;
                data1[82]="fen";

Answer 7

data2[82]=18478;
                data1[83]="feng";
                data2[83]=18463;
                data1[84]="fo";
                data2[84]=18448;
                data1[85]="fou";
                data2[85]=18447;
                data1[86]="fu";
                data2[86]=18446;
                data1[87]="ga";
                data2[87]=18239;
                data1[88]="gai";
                data2[88]=18237;
                data1[89]="gan";
                data2[89]=18231;
                data1[90]="gang";
                data2[90]=18220;
                data1[91]="gao";
                data2[91]=18211;
                data1[92]="ge";
                data2[92]=18201;
                data1[93]="gei";
                data2[93]=18184;
                data1[94]="gen";
                data2[94]=18183;
                data1[95]="geng";
                data2[95]=18181;
                data1[96]="gong";
                data2[96]=18012;
                data1[97]="gou";
                data2[97]=17997;
                data1[98]="gu";
                data2[98]=17988;
                data1[99]="gua";
                data2[99]=17970;
                data1[100]="guai";
                data2[100]=17964;
                data1[101]="guan";
                data2[101]=17961;
                data1[102]="guang";
                data2[102]=17950;
                data1[103]="gui";
                data2[103]=17947;
                data1[104]="gun";
                data2[104]=17931;
                data1[105]="guo";
                data2[105]=17928;
                data1[106]="ha";
                data2[106]=17922;
                data1[107]="hai";
                data2[107]=17759;
                data1[108]="han";
                data2[108]=17752;
                data1[109]="hang";
                data2[109]=17733;
                data1[110]="hao";
                data2[110]=17730;
                data1[111]="he";
                data2[111]=17721;
                data1[112]="hei";
                data2[112]=17703;
                data1[113]="hen";
                data2[113]=17701;
                data1[114]="heng";
                data2[114]=17697;
                data1[115]="hong";
                data2[115]=17692;
                data1[116]="hou";
                data2[116]=17683;
                data1[117]="hu";
                data2[117]=17676;
                data1[118]="hua";
                data2[118]=17496;
                data1[119]="huai";
                data2[119]=17487;
                data1[120]="huan";
                data2[120]=17482;
                data1[121]="huang";
                data2[121]=17468;
                data1[122]="hui";
                data2[122]=17454;
                data1[123]="hun";
                data2[123]=17433;
                data1[124]="huo";
                data2[124]=17427;
                data1[125]="ji";
                data2[125]=17417;
                data1[126]="jia";
                data2[126]=17202;
                data1[127]="jian";
                data2[127]=17185;
                data1[128]="jiang";
                data2[128]=16983;
                data1[129]="jiao";
                data2[129]=16970;
                data1[130]="jie";
                data2[130]=16942;
                data1[131]="jin";
                data2[131]=16915;
                data1[132]="jing";
                data2[132]=16733;
                data1[133]="jiong";
                data2[133]=16708;
                data1[134]="jiu";
                data2[134]=16706;
                data1[135]="ju";
                data2[135]=16689;
                data1[136]="juan";
                data2[136]=16664;
                data1[137]="jue";
                data2[137]=16657;
                data1[138]="jun";
                data2[138]=16647;
                data1[139]="ka";
                data2[139]=16474;
                data1[140]="kai";
                data2[140]=16470;
                data1[141]="kan";
                data2[141]=16465;
                data1[142]="kang";
                data2[142]=16459;
                data1[143]="kao";
                data2[143]=16452;
                data1[144]="ke";
                data2[144]=16448;
                data1[145]="ken";
                data2[145]=16433;
                data1[146]="keng";
                data2[146]=16429;
                data1[147]="kong";
                data2[147]=16427;
                data1[148]="kou";
                data2[148]=16423;
                data1[149]="ku";
                data2[149]=16419;
                data1[150]="kua";
                data2[150]=16412;
                data1[151]="kuai";
                data2[151]=16407;
                data1[152]="kuan";
                data2[152]=16403;
                data1[153]="kuang";
                data2[153]=16401;
                data1[154]="kui";
                data2[154]=16393;
                data1[155]="kun";
                data2[155]=16220;
                data1[156]="kuo";
                data2[156]=16216;
                data1[157]="la";
                data2[157]=16212;
                data1[158]="lai";
                data2[158]=16205;
                data1[159]="lan";
                data2[159]=16202;
                data1[160]="lang";
                data2[160]=16187;
                data1[161]="lao";
                data2[161]=16180;
                data1[162]="le";
                data2[162]=16171;
                data1[163]="lei";
                data2[163]=16169;
                data1[164]="leng";
                data2[164]=16158;
                data1[165]="li";
                data2[165]=16155;
                data1[166]="lia";
                data2[166]=15959;
                data1[167]="lian";
                data2[167]=15958;
                data1[168]="liang";
                data2[168]=15944;
                data1[169]="liao";
                data2[169]=15933;
                data1[170]="lie";
                data2[170]=15920;
                data1[171]="lin";
                data2[171]=15915;
                data1[172]="ling";
                data2[172]=15903;
                data1[173]="liu";
                data2[173]=15889;
                data1[174]="long";
                data2[174]=15878;
                data1[175]="lou";
                data2[175]=15707;
                data1[176]="lu";

Answer 8

啊 这也行啊？不过谢谢 32zyc()

Answer 9

public class ZH
{
public static void main(String[] args)
{
String s1="张三";
String s2="李四";
char[] charArray = s1.toCharArray();
System.out.println(charArray[0]+Character.digit(charArray[0],16));
char[] charArray2 = s2.toCharArray();
System.out.println(charArray2[0]+Character.digit(charArray2[0],16));
System.out.println(s1.compareTo(s2));
}
};
输出
24351
26445
-2094
也就是
张 与 李  的unicode值相差2094

Answer 10

在jsp里面:
String a="张三";
String b="李四";
if(a.compareTo(b)>0)
out.println(a); 
else
out.println(b);

Answer 11

这帖子不能编辑,charArray[0]+Character.digit(charArray[0],16)改(int)charArray[0]也是一样的,呵呵,强制类型转换输出unicode值

Answer 12

import java.util.Comparator; public class PinYinComparator implements Comparator {   public int compare(Object o1, Object o2) { 
    try { 
      String s1=new String(o1.toString().getBytes("GB2312"),"ISO-8859-1"); 
      String s2=new String(o2.toString().getBytes("GB2312"),"ISO-8859-1"); 
      return s1.compareTo(s2); 
    } 
    catch (Exception e) { 
      e.printStackTrace(); 
    } 
    return 0; 
  } 
} import java.util.ArrayList; 
import java.util.Collections; public class Tester { 
  public static void main(String[] args) { 
    ArrayList list=new ArrayList(); 
    list.add("啊"); 
    list.add("包"); 
    list.add("从"); 
    list.add("随"); 
    list.add("其"); 
    list.add("在"); 
    list.add("平"); 
    list.add("人"); 
    list.add("他"); 
    list.add("以"); 
    list.add("和"); 
    list.add("就"); 
    list.add("可"); 
    list.add("了"); 
    list.add("没"); 
    list.add("额"); 
    list.add("分"); 
    list.add("个"); 
    Collections.sort(list,new PinYinComparator()); 
    for (int i=0;i<list.size();i++) { 
      System.out.println(list.get(i)); 
    } 
  } } 
抄来的,http://www.javaresearch.org/code/thread.jsp?column=721&thread=21645
文章的作者猜想汉字本来就是按照拼音先后来排的,哈哈~
可是张的unicode值比李小哦...这估计是GB2312和unicode的区别了...值得研究...

Answer 13

compareTo是按Unicode排，不是按拼音排吧

Answer 14

对compareTo是按照unicode的,而且unicode好象不是按照拼音排中文的,呵呵

Answer 15

不用自己实现吧，这个应该有专门的包，到google找一下。