Say I have a following string str:
GTM =0.2 Test =100 [DLM] ABCDEF =5 (yes, it contains newline characters) That I am trying to split with [DLM] delimiter substring like this:
String[] strArr = str.split("[DLM]"); Why is it that when I do:
System.out.print(strArr[0]); I get this output: GT
and when I do
System.out.print(strArr[1]); I get =0.2
Does this make any sense at all?
str.split("[DLM]"); should be str.split("\\[DLM\\]");
Why?
[ and ] are special characters and String#split accepts regex.
A solution that I like more is using Pattern#quote:
str.split(Pattern.quote("[DLM]"));
quote returns a String representation of the given regex.
strArr[1] is =0.2. Why it would break the string on newline as well as on any of D, L, M?Yes, you're giving a regex which says "split with either D, or L, or M".
You should escape those boys like this: str.split("\[DLM\]");
It's being split at the first M.
Escape the brackets
("\\[DLM\\]") When you use brackets inside the " ", it reads it as, each character inside of the brackets is a delimiter. So in your case, M was a delimiter
use
String[] strArr = str.split("\\[DLM]\\"); Instead of
String[] strArr = str.split("[DLM]"); Other wise it will split with either D, or L, or M.
=0.2<newline>Test =100<newline>[for thestrArr[1]?