Java 9 Regular Expressions

Methods - String split methods

The String class has two split methods with the following signatures:

• String[] split(String regex, int limit)
• String[] split(String regex)

These split methods split the subject string into an array around the matches of the given regular expression, also called delimiters.

When there is a positive width match at the beginning of an input string, then an empty string is included at the beginning of the resulting array. However, a match of zero width by regular expression does not include any empty string at the beginning of the resulting array.

The array returned by this method contains a combination of the following elements:

• Token substrings that are split by the delimiter, matched using the given regular ...