CODEWITHSUNDEEP
java
FAZ
FAZ

Reputation: 285

Reading particular String from a line

I am using this to get each line from a text file using Java Class. 

String line = null;
try{    
       BufferedReader Br=new BufferedReader(new FileReader("/data/local/fileconfig.txt"));   

       while ((line = Br.readLine()) != null)
        {
           Log.d("hi", "LINE : " + line);              
        }
     } catch (Throwable throwable) { }

The fileconfig.txt has 2 lines like this - 

############################################
packagename:com.hello

So my Log is like - 

LINE :  ############################################
LINE :  packagename:com.hello

My question is now I am able to get this line info packagename:com.hello. I just want to extract com.hello out of this line. What is the logic I can use in my while loop?

Upvotes: 0

Views: 54

Answers (3)

Rob Audenaerde
Rob Audenaerde

Reputation: 20019

You could use the startsWith() method.

Or, somewhat more powerful, but also more difficult, use Regular Expressions with Match Groups.

See here: Using Java to find substring of a bigger string using Regular Expression

Upvotes: 3

Marcinek
Marcinek

Reputation: 2117

You can use either RegEx or a simple split() from String

:?(.*)

or split

String myString = "dsd:Example";
myString.split(":");

Upvotes: 1

Darshan Mehta
Darshan Mehta

Reputation: 30809

If the format of line is always the same then this should do:

Log.d("hi", "LINE : " + line.substring(line.lastIndexOf(":")+1));

Upvotes: 2

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