The pattern() method of Matcher Class is used to get the pattern to be matched by this matcher. Syntax: public Pattern pattern() Parameters: This method do not accepts any parameter. Return Value: This method returns a Pattern which is the pattern to be matched by this Matcher.

What is pattern matching example?

matches any character within the brackets. … For example, x* matches any number of x characters, [0-9]* matches any number of digits, and . * matches any number of anything. A regular expression pattern match succeeds if the pattern matches anywhere in the value being tested.

Is pattern thread safe Java?

5 Answers. Instances of this (Pattern) class are immutable and are safe for use by multiple concurrent threads. Instances of the Matcher class are not safe for such use.