等我，就写出来
import java.io.*;
import java.util.HashMap;
import java.util.Map.Entry;
public class Test {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
BufferedReader br = new BufferedReader(new FileReader("C:\\text.txt"));//我就不写有界面的了，这个参数就是你英文句子文件所在位置
String sentence = null;
HashMap<String,Integer> map = new HashMap<String, Integer>();
while((sentence = br.readLine())!=null){
sentence = sentence.replaceAll("[\\pP'$']", "");
String[] words = sentence.split(" ");
for(String word:words){
if(map.get(word)==null)
map.put(word, 1);
else map.put(word, map.get(word)+1);
}
}
java.util.Iterator<Entry<String, Integer>> iter = map.entrySet().iterator();
while(iter.hasNext()){
Entry entry = (Entry) iter.next();
System.out.println(entry.getKey()+" "+entry.getValue());
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}