Solved

Very easy question Java String

Posted on 2014-01-01
3
345 Views
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
0
Comment
Question by:Ashok
  • 2
3 Comments
 
LVL 75

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.
0
 
LVL 13

Author Comment

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?
0
 
LVL 75

Accepted Solution

by:
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.
0

Featured Post

DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Java contains several comparison operators (e.g., <, <=, >, >=, ==, !=) that allow you to compare primitive values. However, these operators cannot be used to compare the contents of objects. Interface Comparable is used to allow objects of a cl…
Java functions are among the best things for programmers to work with as Java sites can be very easy to read and prepare. Java especially simplifies many processes in the coding industry as it helps integrate many forms of technology and different d…
The viewer will learn how to implement Singleton Design Pattern in Java.
This theoretical tutorial explains exceptions, reasons for exceptions, different categories of exception and exception hierarchy.

911 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now