Implement Regular expression in android

Question

I got stuck in this regular expression as I am having a string as:

   String str = "/abcde/samplename.xyz"

I want to replace this samplename.xyz from a new string, so how can I apply the regular expression in this ?

would you like to only remove samplename.xyz and result will be /abcde/? — Satyaki Mukherjee
– Satyaki Mukherjee, Commented Jan 9, 2014 at 6:41
yes with /abcde/ I will append another string value after replacing samplename.xyz — Kanika
– Kanika, Commented Jan 9, 2014 at 6:42
please see my answer and other two, all the answer now correct. — Satyaki Mukherjee
– Satyaki Mukherjee, Commented Jan 9, 2014 at 6:55

Navaneeth · Accepted Answer · 2014-01-09 07:58:51Z

3

Try this out.....

    String str = "/abcde/samplename.xyz";

    String req=str.substring(str.lastIndexOf("/") + 1);

now you get the value of: req=samplename.xyz and you can replace with which ever string value you want

    String rep=str.replace(req, "");

edited Jan 9, 2014 at 7:58

answered Jan 9, 2014 at 7:47

Navaneeth

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Comments

user543 · Accepted Answer · 2014-01-09 06:47:01Z

2

String startString=str.substring(0, str.lastIndexOf('/') + 1)

answered Jan 9, 2014 at 6:47

user543

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1 Comment

Satyaki Mukherjee Over a year ago

Yes you right man, I have also done the same thing. +1 for you.

dipali · Accepted Answer · 2014-01-09 06:48:34Z

1

 String str = "/abcde/samplename.xyz";
    String str1 = str.substring(0, str.lastIndexOf('/') + 1);
    Toast.makeText(getApplicationContext(), str1, Toast.LENGTH_LONG).show();
    Log.i("strArr[1]=", "" + str1);

check this.i hope its useful to you.

edited Jan 9, 2014 at 6:48

answered Jan 9, 2014 at 6:42

dipali

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2 Comments

Kanika Over a year ago

no, it will split from the the first backslash..I want it to split from the last backslash

Satyaki Mukherjee Over a year ago

but it will only give abcde , but he needs /abcde/

Satyaki Mukherjee · Accepted Answer · 2014-01-09 06:53:01Z

1

Try this::

String str = "/abcde/samplename.xyz";
        String result=str.substring(0, str.lastIndexOf('/') + 1);
        Log.d("Hello","Result="+result);

answered Jan 9, 2014 at 6:53

Satyaki Mukherjee

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Comments

Sujith PS · Accepted Answer · 2014-01-09 07:20:21Z

1

 String[] result = str.split("/");

 String LastItem = result[str.length -1];

 LastItem.replace(newString);

edited Jan 9, 2014 at 7:20

Sujith PS

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answered Jan 9, 2014 at 7:02

sagar shende

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