Question

Danielle, Edward, and Francis are three salespeople at Holiday Homes. Write an application named HomeSales that prompts the user for a salesperson initial (D, E, or F). Either uppercase or lowercase initials are valid. While the user does not type Z, continue by prompting for the amount of a sale. Issue an error message for any invalid initials entered. Keep a running total of the amounts sold by each salesperson. After the user types Z or zfor an initial, display each salesperson’s total, a grand total for all sales, and the name of the salesperson with the highest total.

Please use WHILE loop. Use basic programming and don't use arrays.

Answer 1

import java.util.Scanner;

public class HomeSales {

   public static void main(String[] args) {
       Scanner scan = new Scanner(System.in);
       String salesperson = "";
       // Variable to store individual sales
       int salesD = 0;
       int salesE = 0;
       int salesF = 0;
       int sale;
      
       // Iterate while loop till initial is not Z or z
       while (!salesperson.equalsIgnoreCase("Z")) {
           // Ask user to enter initial
           System.out.print("Enter salesperson initial: ");
           salesperson = scan.nextLine();
          
           // Check initial using switch-case
           // add sale to respective variable
           switch (salesperson.toUpperCase()) {
           case "D":
               System.out.print("Enter sale amount: ");
               sale = Integer.parseInt(scan.nextLine());
               salesD += sale;
               break;
           case "E":
               System.out.print("Enter sale amount: ");
               sale = Integer.parseInt(scan.nextLine());
               salesE += sale;
               break;
           case "F":
               System.out.print("Enter sale amount: ");
               sale = Integer.parseInt(scan.nextLine());
               salesF += sale;
               break;
           case "Z":
               System.out.println("EXIT!!");
               break;
           default:
               System.out.println("Invalid Initials!!");
               break;
           }
           System.out.println();
       }

       // Calculate grandTotal by adding all sale
       int grandTotal = salesD + salesE + salesF;
      
       // Print result
       System.out.println("Danielle's sales: " + salesD);
       System.out.println("Edward's sales: " + salesE);
       System.out.println("Francis's sales: " + salesF);
       System.out.println("Grand Total: " + grandTotal);
      
       // Compare 3 sales with each other and print highest
       if (salesD > salesE && salesD > salesF) {
           System.out.println("Danielle has highest sale.");          
       } else if (salesE > salesD && salesE > salesF) {
           System.out.println("Edward has highest sale.");
       } else if (salesF > salesD && salesF > salesE) {
           System.out.println("Francis has highest sale.");
       }else {
           System.out.println("Sales are same");
       }
   }
}

OUTPUT-