Java 在获取字数的同时显示单词搜索中的可能性

我这里有这个代码，它是单词搜索游戏的一部分。我试图让它在用户退出或时间结束时显示网格中出现的所有单词。到目前为止，我已经做到了这一点。我的问题是，我还想显示出现的单词数量，所以是一个数字。我怎样才能让它在顶部显示“有（单词数）当前单词”，然后是下面的单词

try {
                            FileInputStream fstream = new FileInputStream("allWordsEn.txt");
                            DataInputStream in = new DataInputStream(fstream);
                            BufferedReader br = new BufferedReader(new InputStreamReader(in));
                            String strLine;
                            int presentWords = 0;
                            System.out.println("There were " + presentWords + " present words. They are:");
                            //Read File Line By Line
                            while ((strLine = br.readLine()) != null)   
                            {
                              if(canFind(strLine, t40)) 
                              {
                                presentWords++;
                                System.out.print(strLine + " ");
                              }
                            }
                            //Close the input stream
                            in.close();

使用a来建立您的单词列表，如下所示：

    //Before the loop
    StringBuilder s = new StringBuilder();
    //inside the loop
    s.append(strLine + " ");
    //after the loop
    System.out.println("There were " + presentWords + " present words. They are:" + s.toString());

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请不要使用DataInputStream读取文本