Question

I have a String as folder/File Name. I am creating folder , file with that string. This string may or may not contain some charters which may not allow to create desired folder or file

e.g

String folder = "ArslanFolder 20/01/2013";

So I want to remove these characters with “_”

Here are characters

private static final String ReservedChars = "|\?*<\":>+[]/'"; 

What will be the regular expression for that? I know replaceAll(); but I want to create a regular expression for that.

Answer 1

Use this code:

String folder = "ArslanFolder 20/01/2013 ? / '";
String result = folder.replaceAll("[|?*<\":>+\\[\\]/']", "_");

And the result would be:

ArslanFolder 20_01_2013 _ _ _

you didn’t say that space should be replaced, so spaces are there… you could add it if it is necessary to be done.