How to trim Characters in Android?

Question

I am getting http response as an array from php in android. The response i sent is a ULR. When i get it, it comes as:

["http:\/\/karan.development.com\/Image_android\/upload_image_14552.jpg"]

I tried to remove the charachters as:

String trim;
trim = beforeTrim.replaceAll("[\]", "");

here, "beforeTrim" is a string where the url is stored. But unfortunately it dosen't works. Please anyone help

How are you receiving your input? The string you've supplied appears to be JSON-encoded. If you deserialize your response using GSON or some other JSON deserializer, I would expect the escape characters to disappear. — Simon MᶜKenzie, Feb 19 '15 at 03:07

Andy Brown · Answer 1 · 2015-02-19T03:13:07.310

3

I suspect you just need to escape the regex escape sequence (which is \):

trim = beforeTrim.replaceAll("\\\\", "");
System.out.println(trim);

that prints:

http://karan.development.com/Image_android/upload_image_14552.jpg

The reason for 4 \ characters is:

edited Feb 19 '15 at 03:13

answered Feb 19 '15 at 03:04

Andy Brown

score 1 · Accepted Answer · answered Feb 19 '15 at 03:07

1

Hy karan, you just have to do this for special characters:

String trim;
String trim = beforeTrim.replaceAll("[|?*<\">+\\[\\]/']", "");
System.out.println("After trimming"+" " +trim);

The result you will get is:

http://karan.development.com/Image_android/upload_image_14552.jpg

Hope this will help !

answered Feb 19 '15 at 03:07

Christine

That regular expression seems way too complicated for the task at hand. – Ted Hopp Feb 19 '15 at 03:10

2 Answers2