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Please anyone tell me what is the difference between:

  1. .replaceAll("\\s","");
  2. .replaceAll("\\s+","");
  3. and .replaceAll("\\s+$","");
Harshal Bharatkar
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    You might also read trough http://www.regular-expressions.info/ and http://www.regular-expressions.info/refanchors.html specifically – papanito Jan 11 '21 at 15:22

1 Answers1

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s.replaceAll("\\s", "") Replace each space character with nothing.

s.replaceAll("\\s+", "") Replace each group of 1 or more spaces with nothing.

s.replaceAll("\\s+$", "") Replace each group of 1 or more spaces at the end of the string with nothing.

All of these special characters are explained well in the javadoc.

NomadMaker
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