Puma Filling Station sells gasoline and has a car wash. Fees for the car wash are K40.00 with a gasoline purchase of K200.00 or more and K70.00
otherwise. Three kinds of gasoline are available: regular at K16.25, unleaded
at K 17.63, and super unleaded at K 19.50 per litter. You are required to write
a program that prints a statement for a customer. Input consists of number of
litters purchased, kind of gasoline purchased (R, U, S, or for no purchase, N),
and car wash desired (Y or N). Develop a Pseudocode and a structure chart
for the service station problem.

1. Code:

import java.util.*;

public class serviceStation

{

  public static void main(String[] args)

  {

      Scanner sc = new Scanner(System.in);

      //User inputs

      System.out.println("Enter the litres of gasoline you want: ");

      int gas =sc.nextInt();

      System.out.println("Enter the type of gasoline \nR->regular \nU->unleaded \nS->super unleaded \nN->none");

      char type = sc.next().charAt(0);

      //Convert the character inputs to lowercase

      type = Character.toUpperCase(type);

      System.out.println("Car wash desired? (Y or N)");

      char wash = sc.next().charAt(0);

      //Convert the character inputs to lowercase

      wash = Character.toUpperCase(wash);

      String s1 = "" ,s2 = "";

     //Check for type of gas

      double total = 0.0;

      if(type == 'R')

      {

          total = total + gas* 16.25;

          s1 = "Regular";

      }

      else if(type == 'U')

      {

          total = total + gas*17.63 ;

          s1 = "Unleaded";

      }

      else if(type == 'S')

      {

          total = total + gas*19.50 ;

          s1 = "Super Unleaded";

      }

      else if(type == 'N')

      {

          total = total + gas*0 ;

          s1 = "No gas taken";

      }

      double fees = 0.0;

      //Check if wash is desired

      if(wash == 'Y')

      {

          if(total >= 200)

          {

              fees = total + 40.0;

              s2 = "Yes";

          }

          else

          {

              fees = total + 70.0;

              s2 = "Yes";

          }

      }

      else

      {

          fees = total;

          s2 = "No";

      }

      //print billing details

      System.out.println("\n Billing Details:");

      System.out.println("Litres of Gasoline: " + gas);

      System.out.println("Type of Gasoline: " + s1);

      System.out.println("Car Wash desired: " + s2);

      System.out.println("Total Cost: K" + fees);

  }

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