Java 统计英文单词

package second;import java.util.*;public class OutputWordMess {public static void main(String[] args) {Vector<String> allWord,noSameWord;WordStatistic statistic=new WordStatistic();statistic.setFileName("hello.txt");statistic.WordStatistic();allWord=statistic.getAllWord();noSameWord=statistic.getNoSameWord();System.out.println("共有"+allWord.size()+"个英文单词");System.out.println("有"+noSameWord.size()+"个互不相同英文单词");System.out.println("按出现的频率排列：");int count[]=new int[noSameWord.size()];for(int i=0;i<noSameWord.size();i++){String s1=noSameWord.elementAt(i);for(int j=0;j<allWord.size();j++){String s2=allWord.elementAt(j);if(s1.equals(s2))count[i]++;}}for(int m=0;m<noSameWord.size();m++){for(int n=m+1;n<noSameWord.size();n++){if(count[n]>count[m]){String temp=noSameWord.elementAt(m);noSameWord.setElementAt(noSameWord.elementAt(n), m);noSameWord.setElementAt(temp, n);int t=count[m];count[m]=count[n];count[n]=t;}}}for(int m=0;m<noSameWord.size();m++){double frequency=(1.0*count[m])/allWord.size();System.out.printf("%s:%-7.3f", noSameWord.elementAt(m),frequency);}}}import java.io.*;import java.util.*;public class WordStatistic {Vector<String> allWord,noSameWord;File file=new File("english.txt");Scanner sc=null;String regex;WordStatistic (){allWord=new Vector<String>();noSameWord=new Vector<String>();regex="[\\s\\d\\p{Punct}]+";//正则表达式try{sc=new Scanner(file);sc.useDelimiter(regex);}catch(IOException exp){System.out.println(exp.toString());}}void setFileName(String name){file=new File(name);try{sc=new Scanner(file);sc.useDelimiter(regex);}catch(IOException exp){System.out.println(exp.toString());}}void WordStatistic() {// TODO Auto-generated method stubtry{while(sc.hasNext()){String word=sc.next();allWord.add(word);if(!noSameWord.contains(word))noSameWord.add(word);}}catch(Exception e){}}public Vector<String>getAllWord(){return allWord;}public Vector<String>getNoSameWord(){return noSameWord;}}