java 12 - 5 带有缓冲区的字符流

 1         // 字符缓冲输入流
 2         BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(
 3                 new FileOutputStream("a.txt")));
 *         //化简版本：
 *　　　　　BufferedWriter bw = new BufferedWriter(new FileWriter("a.txt"));
 4         bw.write("呵呵");
 5         bw.write("这是个");
 6         bw.write("冷笑话");
 7         
 8         //释放资源
 9         bw.close();
10     }

 1         //字符缓冲输入流
 2         BufferedReader br = new BufferedReader(new FileReader("a.txt"));
 3         int len = 0;
 4         char[] ch = new char[1024];
 5         while((len = br.read(ch)) != -1){
 6             System.out.println(new String(ch,0,len));//把a.txt里面的内容以String的方式打印出来
 7         }
 8         
 9         
10         //释放资源
11         br.close();