无题

import java.util.Iterator;import java.util.LinkedList;import java.util.List;import java.util.regex.Matcher;import java.util.regex.Pattern;public class Keys {private Pattern keyWord=null;/** * @param args */public static void main(String[] args) {Keys k= new Keys("中国人");String sentences="我是中国人。你是日本人!他是美国人.他妈是中国人.";List sentencesResult=k.getSentences(sentences);if(sentencesResult==null){System.out.println("没找到相关的句子");return;}Iterator it =sentencesResult.iterator();for(;it.hasNext();){String str =(String)it.next();System.out.println(str);}}public Keys(){}public Keys(String key){this.setKeyWord(key);}public String [] sentences(String str){return str.split("[.|;|?|!|！|。|；]");}public void setKeyWord(String keyword){keyWord = Pattern.compile(".*("+keyword+").*");}public List getSentences(String str){List list= new LinkedList();String [] sentences =sentences(str); for(int i=0;i<sentences.length;i++){Matcher m= keyWord.matcher(sentences[i]);if(m.find()){list.add(sentences[i]);}}if(list.size()==0)return null;return list;}}