Copying the text stream character buffer 2

This method is better

//创建字符缓冲输出流对象
		BufferedWriter bw=new BufferedWriter(new FileWriter("b.txt"));
		BufferedReader br=new BufferedReader(new FileReader("2.txt"));
		
		String len;
		while((len=br.readLine())!=null){
			bw.write(len);
			bw.newLine();//换行
			bw.flush();
		}
		
		//释放资源
		br.close();
		bw.close();