The toString() method of Matcher Class is used to get the String representation of this matcher. This method is derived from the Object Class and behaves in the similar way.
Syntax:
public String toString()
Parameters: This method takes no parameters.
Return Value: This method returns a String value which is the String representation of this matcher.
Below examples illustrate the Matcher.toString() method:
Example 1:
// Java code to illustrate toString() method  import java.util.regex.*;  public class GFG {    public static void main(String[] args)    {          // Get the regex to be checked        String regex = "(Geeks)";          // Create a pattern from regex        Pattern pattern = Pattern.compile(regex);          // Get the String to be matched        String stringToBeMatched            = " Geeks for For Geeks Geek";          // Create a matcher for the input String        Matcher matcher            = pattern.matcher(stringToBeMatched);          // Get the String representation of this matcher        // using toString() method        System.out.println(matcher.toString());    }} |
Output:
java.util.regex.Matcher[pattern=(Geeks) region=0,25 lastmatch=]
Example 2:
// Java code to illustrate toString() method  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            = "FGF GFG GFG FGF";          // Create a matcher for the input String        Matcher matcher            = pattern.matcher(stringToBeMatched);          // Get the String representation of this matcher        // using toString() method        System.out.println(matcher.toString());    }} |
Output:
java.util.regex.Matcher[pattern=(GFG) region=0,15 lastmatch=]
Reference: https://docs.oracle.com/javase/9/docs/api/java/util/regex/Matcher.html#toString–
