in android application how to detect the occurence of substring in a text

Question

I'm getting a text extracted from qrcode from my application, but as I am using zxing library its putting an extra DEMO at the end. How to remove it from there? I was trying this but it does not work:

String aboutText = (Global.text).toString();
aboutText = aboutText.replace("DEMO", " ");

score 0 · Accepted Answer · answered Aug 22 '11 at 08:52

0

String.replace only takes chars as argument. Try String.replaceFirst(String, String) instead.

aboutText = aboutText.replaceFirst("DEMO", " ");

shout work. You can also take a look at replaceAll

answered Aug 22 '11 at 08:52

Fortega

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ok iam able to sort out this one removing DEMO from the text generated..aboutText = aboutText.replaceFirst("DEMO", " ");...but it will replace DEMO from the text where ever it happens..want to remove it from end only.. – Ritu Aug 22 '11 at 08:59
You can write your own 'replaceLast' method... For example: http://stackoverflow.com/questions/1660034/replace-last-string/5254817#5254817 – Fortega Aug 22 '11 at 09:02
thnx fortega....but i m intrested in replacing the last occurence od the "DEMO" ..but unfortunately dere is no func called..replacelast()..neways thnx for the link..i'll try it.. – Ritu Aug 22 '11 at 09:46

score 0 · Answer 2 · answered Aug 22 '11 at 08:54

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Here you are: String. As for a newbie it will be quite helpful to learn more about strings in Java and the operations with them.

answered Aug 22 '11 at 08:54

Egor

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but i am stuck in the second part .... that is from the extracted text from qrcode...how can i distinguish b/w ,which is SMS,Email,URL etc..and perform actions accordingly... – Ritu Aug 22 '11 at 09:38

in android application how to detect the occurence of substring in a text

2 Answers2