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Matcher toString() method in Java with Examples
The java.util.regex.Matcher class represents an engine that performs various match operations. There is no constructor for this class, you can create/obtain an object of this class using the matches() method of the class java.util.regex.Pattern.
The toString() method of the Matcher class returns a string value representing the contents of the current matcher object.
Example 1
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class ToStringExample {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter input text: ");
String input = sc.nextLine();
String regex = "[#%&*]";
//Creating a pattern object
Pattern pattern = Pattern.compile(regex);
//Creating a Matcher object
Matcher matcher = pattern.matcher(input);
int count =0;
while(matcher.find()) {
count++;
}
//Retrieving Pattern used
System.out.println("The are "+count+" special [# % & *] characters in the given text");
System.out.println("Following is the string format of the matcher used: \n"+matcher.toString());
}
}Output
Enter input text: Hello# How # are# you *& welcome to T#utorials%point The are 7 special [# % & *] characters in the given text Following is the string format of the matcher used: java.util.regex.Matcher[pattern=[#%&*] region=0,52 lastmatch=]
Example 2
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class ToStringExample {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter input text: ");
String input = sc.nextLine();
String regex = "[#%&*]";
//Creating a pattern object
Pattern pattern = Pattern.compile(regex);
//Creating a Matcher object
Matcher matcher = pattern.matcher(input);
int count =0;
while(matcher.find()) {
count++;
}
//Retrieving Pattern used
System.out.println("The are "+count+" special [# % & *] characters in the given text");
System.out.println("Following is the string format of the matcher used: \n"+matcher.toString());
}
}Output
Enter input text: Hello# How # are# you *& welcome to T#utorials%point The are 7 special [# % & *] characters in the given text Following is the string format of the matcher used: java.util.regex.Matcher[pattern=[#%&*] region=0,52 lastmatch=]
Updated on: 20-Nov-2019
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