Answer to Question #197435 in Java | JSP | JSF for Syed kaif ali

Question

Write a simple java program that adds two integers input by user. The program should terminate if any operand is nonnumeric. Before program exit, a message should be displayed that “Input is not valid!”.

Hint: You can use

–NumberFormatException

–InputMismatchException

--ClasscastExcception

Answer 1

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


public class Q197435 {
	/**
	 * The start point of the program
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner input =new Scanner(System.in);
		
		try {
			System.out.print("Enter number 1: ");
			int number1=input.nextInt();
			System.out.print("Enter number 2: ");
			int number2=input.nextInt();
			int sum=number1+number2;
			System.out.println("Sum = "+sum);
		}catch (InputMismatchException e) {
			System.out.println("Input is not valid!");
		}
		input.close();
	}
}