import?java.io.BufferedReader;
import?java.io.IOException;
import?java.io.InputStreamReader;
import?java.util.ArrayList;
import?java.util.Collections;
import?java.util.HashMap;
import?java.util.List;
import?java.util.StringTokenizer;

public?class?Item?implements?Comparable{
????????private?String?word;?//用于存儲單詞
????????private?int????frequence;??//map表中單詞序列
????????private?int?count;?//統計單詞總數
????????public?String?getWord（）{??//返回輸入字符
????????????return?word;
????????}
????????
????????public?int?getFreq（）{???//得到序列
????????????return?frequence;
????????}
????????
????????public?void?setWord（String?s）{??//設置字符
????????????word?=?s;
????????}
????????
????????public?void?setFreq（int?n）{??//設置序列
????????????frequence?=?n;
????????}
????????
????????public?int?compareTo（object?b）{???//字符比較方法
????????????Item?t?=?（Item）b;
????????????return?t.getFreq（）-this.getFreq（）;
????????}
????public?HashMap?map?=?new?HashMap（）;
????/**
?????*?單詞統計方法，更新map表中的鍵值對
?????*?*/
????public?void??Count（String?txt）{
????????StringTokenizer?t?=?new?StringTokenizer（txt“.?“）;
????????while（t.hasMoreTokens（））{
????????????String?word?=?t.nextToken（）;
????????????
????????????if（map.get（word）==null）{
????????????	count++;
????????????????Item?item?=?new?Item（）;
????????????????item.setFreq（1）;
????????????????item.setWord（word）;
????????????????map.put（worditem）;
????????????}else{
????????????	count++;
????????????????Item?item?=?map.get（word）;
????????????????item.setFreq（item.getFreq（）+1）;
????????????????map.put（worditem）;
????????????}
????????}
????????/**
?????????*?遍歷map表，進行統計情況的輸出
?????????*?*/
????????List?list?=?new?ArrayList（map.values（））;
????????Collections.sort（list）;
????????System.out.println（“該段文本共包含單詞“+count+“個“）;
????????System.out.println（“該段文本的單詞統計結果如下?：“）;
????????for（Item?item?:?list）{
????????????System.out.println（item.getWord（）?+?“?“?+?item.getFreq（））;
????????}
????}
????/**
?????*?主程序啟動
?????*?*/
????public?static?void?main（String[]?args）?throws?IOException{
????????System.out.println（“請輸入英文文本：“+“\n“）;
????????
????	InputStreamReader?in=new?InputStreamReader（System.in?）;//接收用戶命令行輸入
????????BufferedReader?output=new?BufferedReader（in）;
????//????StringBuffer?sbuf?=new?StringBuffer（）;
????????String?br=output.readLine（）;
	//		s1=sbuf.toString（）;
????????Item?a?=?new?Item（）;
????????a.Count（br）;
????}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????301??2011-10-10?22:44??Input\.classpath

?????文件????????381??2011-10-10?22:44??Input\.project

?????文件????????629??2011-10-10?22:44??Input\.settings\org.eclipse.jdt.core.prefs

?????文件???????3436??2011-10-12?08:04??Input\bin\Item.class

?????文件???????2579??2011-10-11?10:18??Input\src\Item.java

?????目錄??????????0??2011-11-06?09:04??Input\.settings

?????目錄??????????0??2011-11-06?09:04??Input\bin

?????目錄??????????0??2011-11-06?09:04??Input\src

?????目錄??????????0??2011-11-06?09:04??Input

-----------?---------??----------?-----??----

?????????????????7326????????????????????9