Question

Inputmismatchexception writes a program that prompts the user to read two integers and displays their sum. Your program should prompt the user to read the number again if the input is incorrect.

Answer 1

Answer:

import java.util.Scanner;

import java.util.InputMismatchException;

public class Test {

   public static void main(String[] args) {

       Scanner sc = new Scanner(System.in);

       boolean isInvalid;

       int a = 0, b = 0, c;

       do {

           c = 0;

           System.out.print("Enter 1st number: ");

           try {

               a = sc.nextInt();

           } catch (InputMismatchException e) {

               sc.next();

               System.out.println("You entered an invalid value");

               c = 1;

           }

       } while (c != 0);

       do {

           c = 0;

               System.out.print("Enter 2nd number: ");

           try {

               a = sc.nextInt();

           } catch (InputMismatchException e) {

               System.out.println("You entered an invalid value");

               c = 1;

               sc.next();

           }

       } while (c != 0);

   }

}