Password modifier many user-created passwords are simple and easy to guess. write a program that takes a simple password and makes it stronger by replacing characters using the key below, and by appending "q*s" to the end of the input string. i becomes ! a becomes @ m becomes m b becomes 8 o becomes . ex: if the input is:

The requirements to make the passwords stronger are as follows:

1. Replace i with !.

2. Replace a with @.

3. Replace m with M.

4. Replace B with 8.

5. Replace o with .

6. Append q*s to the end of the string.

Since it is not mentioned in what language the program should be, I am going to choose Java.

NOTE: Each and every line of code is explained in the comments (in bold) in the program given below:

//Importing the scanner class for taking an input from the user

import java.util.Scanner;

public class Password{

//Main function

    public static void main(String []args){

        System.out.println("Enter the password:");

        //Letting the user to enter his or her password

        Scanner scan = new Scanner(System.in);

        //Entered password is stored in the String variable named 'password'

        String password = scan.nextLine();

        //StringBuilder Class is used to generate a new stronger password. It has the helper functions like append for appending the strings to other strings

        StringBuilder strongerPasswordBuilder = new StringBuilder();

        //For loop is used to iterate through the entered password character-by-character. The inbuilt 'toCharArray' function is used to convert the entered password into an array of characters.

        for (char x: password.toCharArray()){

            //Switch Statement is used to replace the characters with the ones given in the requirements.

            switch (x) {

                //Replacing i with !

               case 'i':

                   strongerPasswordBuilder.append("!");

                    break;

               case 'a':

                   //Replacing a with @

                    strongerPasswordBuilder.append("@");

                    break;

               case 'm':

                   //Replacing m with M

                    strongerPasswordBuilder.append("M");

                    break;

               case 'B':

                   //Replacing B with 8

                    strongerPasswordBuilder.append("8");

                    break;

               case 'o':

                   //Replacing o with .

                   strongerPasswordBuilder.append(".");

                    break;

               default:

               //Default case where the characters are taken as-is

                   strongerPasswordBuilder.append(String.valueOf(x));

                    break;

            }

        }

        //Appending 'q*s' to the end of the string

        strongerPasswordBuilder.append("q*s");

        //Converting the StringBuilder stream to String so as to get the Stronger Password.

        String strongerPassword = strongerPasswordBuilder.toString();

        //Printing the Stronger Password

        System.out.println("The stronger password is: "+strongerPassword);

    }

}