method to take string inside curly braces using split or tokenizer

Question

String s = "author= {insert text here},";

Trying to get the inside of the string, ive looked around but couldn't find a resolution with just split or tokenizer...

so far im doing this

arraySplitBracket = s.trim().split("\\{", 0);

which gives me insert text here}, at array[1] but id like a way to not have } attached

also tried

StringTokenizer st = new StringTokenizer(s, "\\{,\\},");

But it gave me author= as output.

can you clearly mention your input format?Does `s` and `author` refer to same variable ? `author= {insert text here},` in this you have a comma so it is not clear what is the exact format of string you are assigning to `author`. — Abhinav, Oct 30 '18 at 06:04
Possible duplicate of [How to split a string in Java](https://stackoverflow.com/questions/3481828/how-to-split-a-string-in-java) — Rupesh S., Oct 30 '18 at 06:06

Deepak Gunasekaran · Accepted Answer · 2018-10-30T06:16:10.490

4

public static void main(String[] args) {
        String input="{a c df sdf TDUS^&%^7 }";     
        String regEx="(.*[{]{1})(.*)([}]{1})";
        Matcher matcher = Pattern.compile(regEx).matcher(input);            

        if(matcher.matches()) {         
            System.out.println(matcher.group(2));
        }
}

edited Oct 30 '18 at 06:16

answered Oct 30 '18 at 06:00

Deepak Gunasekaran

747
5
13

is there any way with just stringtokenizer or split? i feel it should be simpler ;o – MasterYoshi Oct 30 '18 at 06:04
1

Split or StringTokenizer can be used to Split the delimited string only. Here, since your case is a string bounded with curly braces, i hope it may not be helpful. – Deepak Gunasekaran Oct 30 '18 at 06:13
so if i were using split the only way would be to substring that string and do length()-2?arraySplitBracket[1].substring(0, arraySplitBracket[1].length()-2) this seems to work. – MasterYoshi Oct 30 '18 at 06:29
You may use substring if you want – Deepak Gunasekaran Oct 30 '18 at 06:29
1

Yes, as you said if you use split, you have to take substring ignoring the end curly braces – Deepak Gunasekaran Oct 30 '18 at 06:32
To be very simple, **input.substring(input.indexOf("{")+1,input.lastIndexOf("}"))** – Deepak Gunasekaran Oct 30 '18 at 06:32
thank you, what about stringtokenizer same issue as split? – MasterYoshi Oct 30 '18 at 06:42
1

Split or StringTokenizer . Both will be used in the case of fixed delimiter only. if you use you have to take substring from last curly braces. – Deepak Gunasekaran Oct 30 '18 at 06:52

score 0 · Answer 2 · answered Oct 30 '18 at 06:03

0

You can use \\{([^}]*)\\} Regex to get string between curly braces.

Code Snap :

String str = "{insert text here}";
        Pattern p = Pattern.compile("\\{([^}]*)\\}");
        Matcher m = p.matcher(str);
        while (m.find()) {
          System.out.println(m.group(1));
        }

Output :

insert text here

answered Oct 30 '18 at 06:03

Snehal Patel

1,282
2
11
25

Can you please explain regex in detail – kiranbirajdar Oct 30 '18 at 06:06

score 0 · Answer 3 · answered Oct 30 '18 at 06:11

0

String s = "auther ={some text here},"; 
s =  s.substring(s.indexOf("{") + 1); //some text here},
s = s.substring(0, s.indexOf("}"));//some text here
System.out.println(s);

answered Oct 30 '18 at 06:11

Rupesh S.

41
7

score -1 · Answer 4 · answered Oct 30 '18 at 05:59

-1

How about taking a substring by excluding the character at arraySplitBracket.length()-1

Something like

arraySplitBracket[1] = arraySplitBracket[1].substring(0,arraySplitBracket.length()-1);

Or use String Class's replaceAll function to replace } ?

answered Oct 30 '18 at 05:59

jkasper

236
4
19

method to take string inside curly braces using split or tokenizer

4 Answers4