Question

Create a simple addition calculator in Java. The program should prompt the user to enter 2 integers, then adds the numbers and prints the result. Make sure the program includes appropriate exception handling in case the user does not enter appropriate integer values.

Answer 1

import java.util.InputMismatchException;
import java.util.Scanner;

public class AddIntegers {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        try {
            System.out.print("Enter first integer: ");
            int n1 = in.nextInt();
            System.out.print("Enter second integer: ");
            int n2 = in.nextInt();
            System.out.println("sum of " + n1 + " and " + n2 + " is " + (n1 + n2));
        } catch (InputMismatchException e) {
            System.out.println("You must enter integers only..");
        }
    }
}