Java.util.Scanner.match() Method

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Description

The java.util.Scanner.match() method returns the match result of the last scanning operation performed by this scanner. This method throws IllegalStateException if no match has been performed, or if the last match was not successful.

Declaration

Following is the declaration for java.util.Scanner.match() method

public MatchResult match()

Parameters

NA

Return Value

This method returns a match result for the last match operation

Exception

IllegalStateException − If no match result is available

Example

The following example shows the usage of java.util.Scanner.match() method.

package com.tutorialspoint;

import java.util.*;

public class ScannerDemo {
   public static void main(String[] args) {

      String s = "Hello World! 3 + 3.0 = 6 ";

      // create a new scanner with the specified String Object
      Scanner scanner = new Scanner(s);

      // check if next token is "Hello"
      System.out.println("" + scanner.hasNext("Hello"));

      // find the last match and print it
      System.out.println("" + scanner.match());

      // print the line
      System.out.println("" + scanner.nextLine());

      // close the scanner
      scanner.close();
   }
}

Let us compile and run the above program, this will produce the following result −

true
java.util.regex.Matcher[pattern = Hello region = 0,25 lastmatch = Hello]
Hello World! 3 + 3.0 = 6