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Very easy question Java String

Posted on 2014-01-01
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Last Modified: 2014-01-01
Why use following?

String[] temp = input.split("\\s");

compared to

String[] temp = input.split(" ");

What is the reason to use \\s instead of a space?

Thanks
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Question by:Ashok
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Expert Comment

by:käµfm³d 👽
ID: 39750313
Because "\\s" is a regular expression**, and in this case it means "any whitespace", including spaces, tabs, newlines, carriage returns, and vertical tabs. What the split call splits on is is different between the two calls.

** Really, a single space is itself a regular expression. It's just easier for newbies to regular expressions to think of it as a literal string than a regular expression.
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by:Ashok
ID: 39750327
so if I use " ", it will not detect tab?

If I know for the fact that there is only one space is used to separate each word, which one should I use?
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Accepted Solution

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käµfm³d   👽 earned 250 total points
ID: 39750355
so if I use " ", it will not detect tab?
No. Only space.

If I know for the fact that there is only one space is used to separate each word, which one should I use?
You could stick with space.
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