Remove white spaces from the Java string

Question

Am trying to remove the spaces from the java string leaving the special characters,...

existing: "[Cars]/Info/{      123}    /{4533449      }     ";
expected: "[Cars]/Info/{123}/{4533449}";

Any help would be really appreciated..

Does this answer your question? [Removing whitespace from strings in Java](https://stackoverflow.com/questions/5455794/removing-whitespace-from-strings-in-java) — K. Martin, Nov 24 '20 at 16:08

Spectric · Answer 1 · 2020-11-24T16:41:06.540

1

You should use .replace(toReplace, replaceWith) like so:

st.replaceAll("\\s+","")

Where st is "[Cars]/Info/{ 123} /{4533449 } "

This:

String st = "[Cars]/Info/{      123}    /{4533449      }     ";
System.out.println(st.replaceAll("\\s+",""));

Produces this:

[Cars]/Info/{123}/{4533449}

If you want to remove the spaces for the specific variable, use

st = st.replaceAll("\\s+","")

edited Nov 24 '20 at 16:41

answered Nov 24 '20 at 16:11

Spectric

Still no luck.. its still not replacing the empty spaces – Carsboy Nov 24 '20 at 16:21
@Carsboy It is for me. Please read my answer carefully – Spectric Nov 24 '20 at 16:23
I tried the way above you mentioned but still I'm seeing the spaces in the string.. Am I missing something.. st.replaceAll("\\s+",""); – Carsboy Nov 24 '20 at 16:33
String cleanedCarNumber= (request.getCarNumber()); log.info("cleaned car number1::"+cleanedCarNumber.replaceAll("\\s+","")); Logger response: cleaned car number1::[Cars]/Info/{ 123} /{14163449 } – Carsboy Nov 24 '20 at 16:57
@Carsboy Please see my edited answer. – Spectric Nov 24 '20 at 18:31
This could be further improved to omit out any non-ASCII chars should they occur: `st = st.replaceAll("[^\\x00-\\x7F]*[^\\S]","");` – Sathimantha Malalasekera Nov 24 '20 at 21:21
There are some non-ASCII chars that can appear like white spaces – Sathimantha Malalasekera Nov 24 '20 at 21:22
@Carsboy If my answer answers your question, please consider accepting! :) – Spectric Nov 25 '20 at 03:34

1 Answers1