Splitting a space separated string

Question

String numbers = \"5 1 5 1\";

So, is it:

String [] splitNumbers = numbers.split();

or:

String [] spli         


        

Answer 1

In your above case split("\s+");, you need to escape \ with another backslash, which is:

split("\\s+");

Or

split(" "); also can do it

Note that split("\\s+"); split any length of whitespace including newline(\n), tab(\t) while split(" "); will split only single space.

For example, when you have string separated with two spaces, say "5   1 5 1" ,

using split("\\s+"); you will get {"5","1","5","1"}

while using split(" "); you will get {"5","","1","5","1"}