How to remove spaces in between the String

Question

I have below String

  string = "Book Your Domain And Get\n \n\n \n \n \n Online Today."
  string = str.replace("\\s","").trim();

which returning

  str = "Book Your Domain And Get     Online Today."

But what is want is

  str = "Book Your Domain And Get Online Today."

I have tried Many Regular Expression and also googled but got no luck. and did't find related question, Please Help, Many Thanks in Advance

What's with all the newline characters? – Chris B Sep 18 '13 at 11:02 — Chris B, Sep 18 '13 at 11:02

score 50 · Accepted Answer · answered Sep 18 '13 at 11:00

50

Use \\s+ instead of \\s as there are two or more consecutive whitespaces in your input.

string = str.replaceAll("\\s+"," ")

answered Sep 18 '13 at 11:00

Rafi Kamal

4,412
8
35
48

1

@JayakrishnanPm That will remove all spaces, instead of replacing multiple consecutive spaces with a single space. – Rafi Kamal Apr 20 '17 at 06:41

score 13 · Answer 2 · answered Sep 18 '13 at 11:00

You can use replaceAll which takes a regex as parameter. And it seems like you want to replace multiple spaces with a single space. You can do it like this:

string = str.replaceAll("\\s{2,}"," ");

It will replace 2 or more consecutive whitespaces with a single whitespace.

score 3 · Answer 3 · answered Sep 18 '13 at 11:10

3

First get rid of multiple spaces:

String after = before.trim().replaceAll(" +", " ");

answered Sep 18 '13 at 11:10

score 0 · Answer 4 · answered Aug 07 '19 at 08:20

If you want to just remove the white space between 2 words or characters and not at the end of string then here is the regex that i have used,

        String s = "   N    OR  15  2    ";

    Pattern pattern = Pattern.compile("[a-zA-Z0-9]\\s+[a-zA-Z0-9]", Pattern.CASE_INSENSITIVE); 

    Matcher m = pattern.matcher(s);

        while(m.find()){
        String replacestr = "";


        int i = m.start();
            while(i<m.end()){
                replacestr = replacestr + s.charAt(i);
                i++;
            }

            m = pattern.matcher(s);
        }

        System.out.println(s);

it will only remove the space between characters or words not spaces at the ends and the output is

NOR152

score 0 · Answer 5 · answered Oct 28 '19 at 18:04

0

Eg. to remove space between words in a string:

String example = "Interactive Resource";

System.out.println("Without space string: "+ example.replaceAll("\\s",""));

Output: Without space string: InteractiveResource

answered Oct 28 '19 at 18:04

shahchiragh

1
2

score 0 · Answer 6 · answered Jun 28 '20 at 17:16

0

If you want to print a String without space, just add the argument sep='' to the print function, since this argument's default value is " ".

answered Jun 28 '20 at 17:16

Omar

1
3

score 0 · Answer 7 · edited Feb 24 '21 at 19:34

0

//user this for removing all the whitespaces from a given string for example a =" 1 2 3 4"
//output: 1234 
a.replaceAll("\\s", "")

edited Feb 24 '21 at 19:34

Ali Tamoor

796
11
16

answered Feb 24 '21 at 15:22

jayee

9
1

score 0 · Answer 8 · answered Jan 23 '22 at 21:43

0

String s2=" 1 2 3 4 5 "; String after=s2.replace(" ", "");

this work for me

answered Jan 23 '22 at 21:43

Aman Sharma

1
1

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This is already covered by other answers. – Gurkirat Singh Guliani Jan 24 '22 at 02:50

How to remove spaces in between the String

8 Answers8