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.
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.
I used one of this:
String alphaOnly = input.replaceAll("[^\\p{Alpha}]+","");
String alphaAndDigits = input.replaceAll("[^\\p{Alpha}\\p{Digit}]+","");
See this link: Replace special characters
This is correct solution:
String result = inputString.replaceAll("[\\\\|?\u0000*<\":>+\\[\\]/']", "_");
Kent answer is good, but he isnt include characters NUL and \.
Also, this is a secure solution for replacing/renaming text of user-input file names, for example.
Try this :
replaceAll("[\\W]", "_");
It will replace all non alphanumeric characters with underscore
ReservedCharsstring.