Question

Write a Java program for a fortune teller.

The program should begin by asking the user to enter their name. Following that the program will display a greeting.

Next, the program will ask the user to enter the month (a number 1-12) and day of the month (a number 1-13) they were born. Following that the program will display their zodiac sign.

Next, the program will ask the user their favorites color (the only choices should be: red, green and blue). Following that the program will display a fortune based on the chosen color. The three fortunes corresponding to the colors are:

Red: You will become a gold miner.

Green: You will become a forest ranger.

Blue: You will sing the blues.

Besides the main() method, your program must include a method that returns an integer (1-12) representing the zodiac sign (there are 12 zodiac signs). The method should accept as input parameters two integers (a month and day). The prototype for the method should be:

// Returns an integer 1-12 representing the zodiac sign for the given date int GetZodiac (int month, int day);

Your program should also contain a method to print the fortune given an integer (1-3) corresponding to the color chosen by the user. The prototype for the method should be:

// Prints the fortune (1-3)

void PrintFortune (int n); // n=1-3

For example, the output might look like:

What is your name? Elvis Welcome Elvis.

What month were you born on (1-12)? 3

What day of the month were you born on (1-13)? 18

Elvis, I see your sign is Pisces.

Choose your favorite color (1=red, 2=green, 3=blue): 3

You will sing the blues.

Answer 1

If you like the code, give it a thumbs up. Incase any clarifications are required, let me know in the comments.

The code starts below this line.

import java.util.Scanner;
public class FortuneTeller {
   
    //GetZodiac function takes 2 int arguments month and day and returns the integer corresponding to the zodiac sign
    //If the days do not match with the days possible in that months, it returns -1
    int GetZodiac (int month, int day){
        if((month==3 && day>=21 && day<=31) || (month==4 && day>0 && day<=19))
            return 1; //return 1 for Aries
        else if((month==4 && day>=20 && day<=30) || (month==5 && day>0 && day<=20))
            return 2; //return 2 for Taurus
        else if((month==5 && day>=21 && day<=31) || (month==6 && day>0 && day<=20))
            return 3; //return 3 for Gemini
        else if((month==6 && day>=21 && day<=30) || (month==7 && day>0 && day<=22))
            return 4; //return 4 for Cancer
        else if((month==7 && day>=23 && day<=31) || (month==8 && day>0 && day<=22))
            return 5; //return 5 for Leo
        else if((month==8 && day>=23 && day<=31) || (month==9 && day>0 && day<=22))
            return 6; //return 6 for Virgo
        else if((month==9 && day>=23 && day<=30) || (month==10 && day>0 && day<=22))
            return 7; //return 7 for Libra
        else if((month==10 && day>=23 && day<=31) || (month==11 && day>0 && day<=21))
            return 8; //return 8 for Scorpio
        else if((month==11 && day>=22 && day<=30) || (month==12 && day>0 && day<=21))
            return 9; //return 9 for Sagittarius
        else if((month==12 && day>=22 && day<=31) || (month==1 && day>0 && day<=19))
            return 10; //return 10 for Capricorn
        else if((month==1 && day>=20 && day<=31) || (month==2 && day>0 && day<=18))
            return 11; //return 11 for Aquarius
        else if((month==2 && day>=19 && day<=29) || (month==3 && day>0 && day<=20))
            return 12; //return 12 for Pisces
        else
            return -1; //return -1 if days do not match with months
    }

    //function main starts
    public static void main(String[] args) {
        String name; //name will store the name of a person
        //month and day will store the birth month and day of that person and 
        //color will store an integer corresponding to the favorite color of that person
        int month, day, color, zodiac; 
        //reader is a Scanner instance that will help in getting user input
        Scanner reader = new Scanner(System.in);
        //fortuneTeller is an instance of FortuneTeller class and this will help in calling GetZodiac function
        //main can not call GetZodiac directly as it is a static function
        FortuneTeller fortuneTeller = new FortuneTeller();

        //Get user input for name and display welcome message
        System.out.print("What is your name? ");
        name = reader.next();
        System.out.println("Welcome "+name+".");

        //get user input for month and display error message if month is incorrect and exit
        System.out.print("What month were you born on (1-12)? ");
        month = reader.nextInt();
        if(month<1 || month>12) {
            System.out.println("In our calendar there are only 12 months. Go find your correct birth date and comeback ");
            System.exit(0);
        }

        //get user input for day and call GetZodiac function to get integer equivalent of the zodiac sign in variable zodiac
        System.out.print("What day of the month were you born on (1-31)? ");
        day = reader.nextInt();
        zodiac = fortuneTeller.GetZodiac(month,day);
        //if zodiac is -1, display the error message and exit
        if(zodiac==-1) {
            System.out.println("Your birth date does not match the number of days in your birth month. Go find your correct birth date and comeback ");
            System.exit(0);
        }
        //otherwise display the zodiac sign using switch statement
        System.out.print(name+", I see your sign is ");
        switch(zodiac){
            case 1:
                System.out.println("Aries");
                break;
            case 2:
                System.out.println("Taurus");
                break;
            case 3:
                System.out.println("Gemini");
                break;
            case 4:
                System.out.println("Cancer");
                break;
            case 5:
                System.out.println("Leo");
                break;
            case 6:
                System.out.println("Virgo");
                break;
            case 7:
                System.out.println("Libra");
                break;
            case 8:
                System.out.println("Scorpio");
                break;
            case 9:
                System.out.println("Sagittarius");
                break;
            case 10:
                System.out.println("Capricorn");
                break;
            case 11:
                System.out.println("Aquarius");
                break;
            case 12:
                System.out.println("Pisces");
                break;
        }

        //get user input for color as an integer
        System.out.print("Choose your favorite color (1=red, 2=green, 3=blue): ");
        color = reader.nextInt();
        //diplay the fortune based on color using the switch case. 
        //Incase the value is invalid, display the error message in default case and exit
        switch(color){
            case 1:
                System.out.println("You will become a gold miner.");
                break;
            case 2:
                System.out.println("You will become a forest ranger.");
                break;
            case 3:
                System.out.println("You will sing the blues.");
                break;
            default:
                System.out.println("You had to enter 1-3 only. Try again from the start");
                System.exit(0);
        }
    }
}

Welcome Elvis. What month were you born on (1-12)? 3 What day of the month were you born on (1-31)? 18 Elvis, I see your sign is Pisces Choose your favorite color (1-red, 2-green, 3-blue) 3 You will sing the blues. Process finished with exit code 0