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Java Scanner match() method with Example

Scanner Class match() method: Here, we are going to learn about the match() method of Scanner Class with its syntax and example.
Submitted by Preeti Jain, on February 18, 2020

Scanner Class match() method

• match() method is available in java.util package.
• match() method is used to get the MatchResult of the last scanning operation operated by this Scanner.
• match() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• match() method may throw an exception at the time of returning MatchResult. IllegalStateException: This exception may throw when none match result exists.

Syntax:

    public MatchResult match();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of the method is MatchResult, it gets match result for the last matching operation.

Example:

// Java program to demonstrate the example 
// of MatchResult match() method of Scanner 

import java.util.*;

public class MatchOfScanner {
    public static void main(String[] args) {
        String str = "Hi, [IncludeHelp] +\n 10.0 true ";

        // Instantiates a Scanner object with
        // the given string str
        Scanner sc = new Scanner(str);

        // Display str
        System.out.println("sc.nextLine(): " + sc.nextLine());

        // By using match() method is
        // to match the last scanning
        // operation performed by this Scanner
        System.out.println("sc.match(): " + sc.match());

        // By using close() method is to 
        // close the Scanner object
        sc.close();
    }
}

Output

sc.nextLine(): Hi, [IncludeHelp] +
sc.match(): java.util.regex.Matcher$ImmutableMatchResult@3b6eb2ec