Question

Assignment 14.3: Valid Email (10 pts)

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Intenet E nail Address Your e-mai addess ia the addresa other people use to send e-mail messeges to you E-mail adresz mnichGbiotechderkm For eample someone@ricosotcom Back

• Write a program that takes as input an email address, and reports to the user whether or not the email address is valid.
• For the purposes of this assignment, we will consider a valid email address to be one that contains an @ symbol
• The program must allow the user to input as many email addresses as desired until the user enters "q" to quit.
• For each email entered, the program should display "That email address is valid" or "That email address is invalid"
• Note that you are not allowed to use any String methods other than substring, charAt, and length in this program, and are required to use a for loop to iterate the String as demonstrated during today's lesson.
• You are also required to use the starter code provided below. Please do not change this starter code. Instead, you can add more lines of code to it.

• Name your program Email.java and upload it to Canvas once it is working as shown in the sample output below

Starter Code

/**

* @author

* CIS 36A

*/

import java.util.Scanner;

public class Email {

    public static void main() {

        String email = "";

        Scanner input = new Scanner(System.in);

        //Welcome and prompt user here

        while (!email.equalsIgnoreCase("q")) {

           boolean isValid = false;

            //add your for loop here

       if (isValid) {

            System.out.println("The email address is valid.");

        } else {

            System.out.println("The email address is invalid.");

        }

        }

        

    }

}

The output of your program should look identical to the sample output below except user input may vary.

Welcome! Enter an email and I will tell you if it is valid.

Please enter an email or q to quit: [email protected]

That email address is valid.

Please enter an email or q to quit: bobajobs.com

That email address is invalid

Please enter an email or q to quit: bob@jobs

That email address is valid.

Please enter an email or q to quit: q

Goodbye!

Answer 1

Here is the completed code for this problem. Comments are included, go through it, learn how things work and let me know if you have any doubts or if you need anything to change. If you are satisfied with the solution, please rate the answer. Thanks

/**

* @author

* CIS 36A

*/

import java.util.Scanner;

public class Email {

                public static void main(String[] args) {

                                String email = "";

                                Scanner input = new Scanner(System.in);

                                // Welcome user and prompt for input

                                System.out

                                                               .println("Welcome! Enter an email and I will tell you if it is valid.\n");

                                System.out.print("Please enter an email or q to quit: ");

                                email = input.nextLine();

                                while (!email.equalsIgnoreCase("q")) {

                                               boolean isValid = false;

                                               // looping through each index on email string

                                               for (int i = 0; i < email.length(); i++) {

                                                               //checking if current character is '@'

                                                               if (email.charAt(i) == '@') {

                                                                               //valid

                                                                               isValid = true;

                                                                               //end of loop

                                                                               break;

                                                               }

                                               }

                                               if (isValid) {

                                                               System.out.println("The email address is valid.");

                                               } else {

                                                               System.out.println("The email address is invalid.");

                                               }

                                               System.out.print("Please enter an email or q to quit: ");

                                               email = input.nextLine();

                                }

                                System.out.println("Goodbye!");

                }

}

/*OUTPUT*/

Welcome! Enter an email and I will tell you if it is valid.

Please enter an email or q to quit: [email protected]

The email address is valid.

Please enter an email or q to quit: bobajobs.com

The email address is invalid.

Please enter an email or q to quit: bob@jobs

The email address is valid.

Please enter an email or q to quit: q

Goodbye!