java-读取文本的前三行代码

    private static Map<Integer,String> getCookie(){
        Map<Integer,String> cookieMap=new HashMap<>();
        try {
            BufferedReader br=new BufferedReader(new FileReader(new File("qa.txt")));
            cookieMap.put(1,br.readLine());
            cookieMap.put(2,br.readLine());
            cookieMap.put(3,br.readLine());
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return cookieMap;
    }