String split() method, zero and negative limit
java, split, string
Solution
The limit parameter controls the number of times the pattern is applied and therefore affects the length of the resulting `array`. We have 3 possible values for this limit:
If the limit n is greater than zero then the pattern will be applied at most n - 1 times, the `array's` length will be no greater than n, and the `array's` last entry will contain all input beyond the last matched delimiter.
If n is non-positive then the pattern will be applied as many times as possible and the `array` can have any length.
If n is zero then the pattern will be applied as many times as possible, the `array` can have any length, and trailing empty strings will be discarded.
You can read more here.
Problem
http://www.tutorialspoint.com/java/java_string_split.htm Here is the syntax of this method: `public String[] split(String regex, int limit)` or `public String[] split(String regex)` In the above link, I can understand the `Str.split("-", 2)` and `Str.split("-", 3)` examples. However, I don't quite get the `Str.split("-", 0)`, what's the role of zero of the limit? In some examples, I have also encountered negative limits, what is this?