Java输入阅读器 - 链接输入流API

Question

两种流链接方法有什么区别？

首先：

            BufferedReader br = new BufferedReader(
                    new InputStreamReader(someUrlConnection.getInputStream(), encoding));

第二：

            InputStream raw = someUrlConnection.getInputStream();
            InputStream buffer = new BufferedInputStream(raw);
            Reader reader = new InputStreamReader(buffer);