How to replace 2 or more spaces with a single space in String and how to delete leading and trailing spaces?

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I want to replace multiple spaces with a single space.

For example:

if I have a String s= "Hello    Everyone". I want the output as "Hello Everyone". How to do this?
Aug 22, 2018 in Java by Daisy
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before=" Hello   world ";
String after = before.trim().replaceAll(" +", " ");

trim() function Returns a copy of the string, with leading and trailing whitespace omitted.

answered Aug 22, 2018 by parth295
• 4,600 points

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