BufferedReader类的讲解

BufferedReader它可以包装字符流，拥有8192字符的缓冲区，将字符流放入缓存里，先把字符读到缓存里，到缓存满了或者你flush的时候，再读入内存，就是为了提供读的效率而设计的。

用法:

//接收数据  
                    BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));  
                    String msg = in.readLine();  
                    if (null != msg){   
                        System.out.println(msg);  
                    }  

注意点:read()方法判断是否为空

        FileReader fr = new FileReader("D:\\Test.txt");
        BufferedReader bf = new BufferedReader(fr);

        int temp;
        while ((temp = bf.read()) != -1){
            System.out.println(bf.readLine());
        }

String msg = null;
   while ((msg=bf.readLine())!=null){
    System.out.println(msg);
   }

BufferedReader类的讲解

原文：http://blog.csdn.net/pengkv/article/details/41575353