打印出某段英文中重复出现的单词

BufferedReader br = new BufferedReader(new FileReader("d:\\test.txt"));
        String line = "";
        Map<String,Integer> map = new HashMap<String,Integer>();
        while(br.readLine()!=null){
            line = br.readLine();
            String[] strArray = line.split(" ");
            int size = strArray.length;
            //统计各个单词出现的次数
            for(int i=0;i<size;i++){
                if(map.containsKey(strArray[i])){
                    int j = map.get(strArray[i]);
                    j = j + 1;
                    map.put(strArray[i], j);
                    //System.out.println(strArray[i]+":"+j);
                }else{
                    map.put(strArray[i], 1);
                }
                //System.out.println(strArray[i]);
            }
        }
        //若单词重复出现，则打印出该单词和该单词出现的次数
        Set<Entry<String, Integer>> set = map.entrySet();
        Iterator<Entry<String,Integer>> it = set.iterator();
        while(it.hasNext()){
            Entry<String,Integer> entry = it.next();
            if(entry.getValue()>1){
                System.out.println(entry.getKey()+":"+entry.getValue());
            }
        }