Remove white space between 2 characters in java

Question

I have a requirement to extract some data from big string

I get input as "Dial by :" from server and I need the input to be in format "Dial by:"

Input : Dial by :

Output Expected : Dial by:

can someone help me how to remove space b/w "y" and ":"

Will the leading text always be `Dial by`? Can you give more examples of how the replacement is supposed to happen? — Tim Biegeleisen, May 15 '20 at 05:50
Does this answer your question? [replace String with another in java](https://stackoverflow.com/questions/5216272/replace-string-with-another-in-java) — Cray, May 15 '20 at 10:02

score 1 · Answer 1 · answered May 15 '20 at 05:48

1

You could use a regular expression to search for a optional whitespace followed by a : at the end of a String and replace it with a bare colon. Like,

String input = "Dial by :";
System.out.println(input.replaceAll("\\s*:$", ":"));

answered May 15 '20 at 05:48

Elliott Frisch

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@TimBiegeleisen Only if they appear at the end of the `String`. That's the `$`. – Elliott Frisch May 15 '20 at 05:49

score 0 · Answer 2 · answered May 15 '20 at 05:47

0

You could use String#replaceAll here:

String input = "Dial by :";
String output = input.replaceAll("\\bDial by\\s+:", "Dial by:");
System.out.println(input + "\n" + output);

This prints:

Dial by :
Dial by:

answered May 15 '20 at 05:47

Tim Biegeleisen

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score 0 · Answer 3 · answered May 15 '20 at 06:55

0

If the string always starts with "Dial by", you could just do:

input = input.substring(0, 7) + input.substring(8);

answered May 15 '20 at 06:55

Diana Shao

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Remove white space between 2 characters in java

3 Answers3