how to remove a distinct number of spaces from String in java?

Question

I'm Dealing with a string that contain 6 spaces after each other :

Example

String h = "abc      def";

How I can remove Only 5 spaces

I tried String.replace(h.substring(i,i+1),"")

and also used string Builder

not working

`h = h.replace(" ","");` The first string has 5 spaces, the second has none. — Jacob, Jul 12 '18 at 14:29
@JavaFan There is supposed to be five spaces in the first string, like I said. StackOverflow took what I wrote (five spaces) and made it one space for some reason. — Jacob, Jul 12 '18 at 14:35
@Jacob Oh i got it it is just to save memory, in future you could use 'code' tags for writing comments. — bit-shashank, Jul 12 '18 at 14:40

score 4 · Accepted Answer · edited Jul 12 '18 at 14:39

4

You can replace 6 spaces with 1 space using below line:

jshell> String a = "abc      def";
a ==> "abc      def"

jshell> a = a.replaceAll("     ", "");
a ==> "abc def"

Also, as shared in the comments, if you want to replace any number of spaces with one space, you can use regex as shared below:

jshell> String a = "abc      def";
a ==> "abc      def"

jshell> a = a.replaceAll("\\s+", " ");
a ==> "abc def"

jshell> String a = "abc            def";
a ==> "abc            def"

jshell> a = a.replaceAll("\\s+", " ");
a ==> "abc def"

edited Jul 12 '18 at 14:39

Youcef LAIDANI

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answered Jul 12 '18 at 14:25

Aman Chhabra

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I don't think that 6 spaces is constant. Basically he wants to remove any number of spaces with only one space. – bit-shashank Jul 12 '18 at 14:28
@JavaFan If that's the case, updated my answer :) – Aman Chhabra Jul 12 '18 at 14:31
1

1+ for extra efforts – bit-shashank Jul 12 '18 at 14:32

how to remove a distinct number of spaces from String in java?

1 Answers1