import?java.io.DataInputStream;
import?java.io.File;
import?java.io.FileInputStream;
import?java.io.FileNotFoundException;
import?java.io.IOException;
import?java.util.logging.Level;
import?java.util.logging.Logger;

/*
?*?To?change?this?template?choose?Tools?|?Templates
?*?and?open?the?template?in?the?editor.
?*/

/**
?*
?*?@author?Administrator
?*/
public?class?Analysis?{?????????//分析類
????static??String[]?classes?=?new?String[100];?//班級
????static???String[]?address?=?new?String[100]?;?//地址
????static??int[]?count_class?=new?int[100];?//班級人數
????static??int[]?count_address?=?new?int[100];?//班級人數
????static??int?c?=0;//班級人數
????static?int?a?=0;?//班級人數
?????public??Analysis（）{

????????String[]?tclasses?=?new?String[100];
????????String[]?taddress?=?new?String[100];
????????String[]?s?=?new?String[11];
????????int?clen?=?0;
????????int?alen?=?0;

????????File?file1?=?new?File（“D:\\學生通訊錄“）;?//讀取數據
????????File[]?group?=?file1.listFiles（）;
????????for（int?i?=0;i????????File[]?txt?=?group[i].listFiles（）;

????????for（int?t?=?0;t????????????try?{
????????????????DataInputStream?input?=?new?DataInputStream（new?FileInputStream（txt[t]））;
????????????????for（int?j?=?0;j<11;j++）{
?????????????????????????try?{
???????????????????????????????s[j]?=?input.readUTF（）;
?????????????????????????????}?catch?（IOException?ex）?{
????????????????????????????????????Logger.getLogger（Search_Change.class.getName（））.log（Level.SEVERE?null?ex）;//為指定子系統查找或創建一個?logger。
???????????????????????????????????}
???????????????????????}
??????????????????????????try?{
???????????????????????????????input.close（）;
??????????????????????????????}?catch?（IOException?ex）?{
????????????????????????????????????Logger.getLogger（Search_Change.class.getName（））.log（Level.SEVERE?null?ex）;
???????????????????????????????????}

????????????}?catch?（FileNotFoundException?ex）?{
????????????????Logger.getLogger（Search_Change.class.getName（））.log（Level.SEVERE?null?ex）;
????????????}
??????????????????tclasses[clen++]?=?s[8];
??????????????????taddress[alen++]?=?s[3];
????????}
????}


??????int?tc?=0;
??????c=0;
????for（int?i=0;i????????tc=0;
???????for（int?j=i;j?????????if（tclasses[i].equals（tclasses[j]））{
?????????????tc++;
?????????}
???????}
????????if（tc==1）{
??????????classes[c++]?=?tclasses[i];
??????????//System.out.println（classes[c-1]）;
????????}
????}



int?m?=0;
??for（int?i=0;i??????m=0;
????for（int?j=0;j??????if（classes[i].equals（tclasses[j]））{
????????m++;
??????}
????}
??????count_class[i]?=?m;
????//?System.out.println（count_class[i]）;
??}

int?ta?=0;
a=0;
for（int?i=0;i????ta?=?0;
????for（int?j=i;j??????if（taddress[i].equals（taddress[j]））{
?????????ta++;
??????}???????
????}
????if（ta==1）{
?????address[a++]=taddress[i];
???????//?System.out.println（address[a-1]）;
????}
}

int?n?=?0;
for（int?i=0;i????n=0;
???for（int?j=0;j