关闭BufferedReader和System.in [英] Closing BufferedReader and System.in
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问题描述
Reader rdr = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(rdr);
String s;
s = br.readLine();
br.close();
Scanner sc = new Scanner(System.in);
s = sc.nextLine();
System.out.print(s);
我注意到，如果我关闭 BufferedReader ，我将无法再从键盘插入输入，因为 System.in 以某种方式关闭。无论如何我可以保留 br.close（）（我需要这个才能删除文件），然后从键盘添加更多输入？
I've noticed that if I close the BufferedReader, I won't be able to insert input from the keyboard anymore, as System.in is somehow closed. Is there anyway I can keep br.close() (I need that in order to delete a file) and then add more input from the keyboard?
推荐答案
看起来你需要：
http://commons.apache.org/io/apidocs/org/apache/commons/io/ input / CloseShieldInputStream.html
在制作读者之前将其包裹在System.in周围，然后一切都会好的，因为你不会那样做你正在使用FileInputStream。
Wrap that around System.in before making your reader, and then all will be well, since you won't do that when you are using a FileInputStream.
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