String output = new String(encryptText);
output = output.replaceAll("\\s", "");
return output;
replaceAll("\\s", ""); doesn't work
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1your code seems to be fine. it should work. I would check what encryptText looks likegefei– gefei2013-04-11 07:35:47 +00:00Commented Apr 11, 2013 at 7:35
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could you please share the input string? because str.replaceAll("\\s", ""); should work. You can also try str.replaceAll(" ", "");Abhinaba Basu– Abhinaba Basu2013-04-11 07:36:02 +00:00Commented Apr 11, 2013 at 7:36
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You should add the error you get or an example of why the solution you posted doesn't work or your question seems to be a duplicate of this one: stackoverflow.com/questions/5455794/…Luigi Massa Gallerano– Luigi Massa Gallerano2013-04-11 07:36:09 +00:00Commented Apr 11, 2013 at 7:36
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6 Answers
String output = new String(encryptText);
output = output.replaceAll(" ", "");
return output;
1 Comment
Luigi Massa Gallerano
We have to say that this solution works only for "pure" whitespace characters. It doesn't catch "special" whitespace characters like tab (\t). Instead, the solution based on java.util.regex.Pattern: replaceAll("\\s", "") does work for every whitespace character: [ \t\n\x0B\f\r]
I was facing the same problem then I searched a lot and found that, it is not a space character but a null value which is transformed into string from character array. This resolved the issue for me -
output.replaceAll(String.valueOf((char) 0), "");
Comments
You could use the non-regex-version replace to do the job:
output = output.replace(" ", "");
Comments
Use String.replaceAll(" ","") or if you want to do it yourself without a lib call, use this.
String encryptedString = "The quick brown fox ";
char[] charArray = encryptedString.toCharArray();
char [] copy = new char[charArray.length];
int counter = 0;
for (char c : charArray)
{
if(c != ' ')
{
copy[counter] = c;
counter++;
}
}
char[] result = Arrays.copyOf(copy, counter);
System.out.println(new String(result));
Comments
Your code works fine for me, see here
Anyway you can use the StringUtils.trimAllWhitespace from the spring framework:
output = StringUtils.trimAllWhitespace(output);
5 Comments
Aliaksei Bulhak
as I understand this function not from JDK. it come with spring?
sdfasdfw
it saysThe method trimAllWhitespace(String) is undefined for the type
Luigi Massa Gallerano
java.lang does not contain a class called StringUtils. Several third-party libs do, such as Apache Commons Lang or the Spring framework. In order to use it you need the relevant jar in your project classpath and import the correct class.
CloudyMarble
@AlekseiBulgak yes your right, springsource.org/spring-community-download
CloudyMarble
Sorry gues, i have forget to mention its part of the spring framework. i updated my answer
z = z.replaceAll(" ", "");
easiest and the simplest way for removing white spaces from the char [];
