Splitting a Java String by the pipe symbol using split(“|”)

Question

The Java official documentation states:

The string \"boo:and:foo\", for example, yields the following results with these expressions Regex Result :

Answer 1

You need

test.split("\\|");

split uses regular expression and in regex | is a metacharacter representing the OR operator. You need to escape that character using \ (written in String as "\\" since \ is also a metacharacter in String literals and require another \ to escape it).

You can also use

test.split(Pattern.quote("|"));

and let Pattern.quote create the escaped version of the regex representing |.