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.
Below examples illustrate the Matcher.pattern() method:
import java.util.regex.*;
public class GFG {
public static void main(String[] args)
{
// Get the regex to be checked
String regex = "java";
// Create a pattern from regex
Pattern pattern
= Pattern.compile(regex);
// Get the String to be matched
String stringToBeMatched
= "javaprogramer";
// Create a matcher for the input String
Matcher matcher
= pattern.matcher(stringToBeMatched);
// Get the Pattern using pattern() method
System.out.println("Pattern: "
+ matcher.pattern());
}
}
Output:
Pattern: java
Example 2:
import java.util.regex.*;
public class GFG {
public static void main(String[] args)
{
// Get the regex to be checked
String regex = "GFG";
// Create a pattern from regex
Pattern pattern
= Pattern.compile(regex);
// Get the String to be matched
String stringToBeMatched
= "GFGFGFGFGFGFGFGFGFG";
Matcher matcher = pattern.matcher
(stringToBeMatched);
System.out.println("Pattern: "
+ matcher.pattern());
}
}
Output:
Pattern: GFG
