Scanner is a simple and easy-to-use utility provided by Java.

import java.util.Scanner;public class ScannerDemo{   public static void main(String args[])   {         Scanner scanner = new Scanner(System.in); //Initializing the Scanner with the Standard input            System.out.println("Please enter a number: ");      int intValue = scanner.nextInt(); // Likely to throw java.util.InputMismatchException when incorrect inputs are provided.                                 // There are similar methods to support other data types            System.out.println("The number entered is " + intValue);   } }