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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. import java.util.Scanner;
  8.  
  9. import java.text.DecimalFormat;
  10.  
  11. // This program will calculate the cost of someone's order at a coffee shop with applied possible  discounts and tax
  12.  
  13. class CoffeeShopWithMethods
  14. {
  15.  
  16.   static Scanner user_input = new Scanner(System.in);
  17.   static double Discounted_cost = 0.0;
  18.   static double Total_cost = 0.0;
  19.   static double tax = 0.0;
  20.   static double cost = 0.0;
  21.   static double discount = 0.0;
  22.   public static void main (String [] args)
  23.   {
  24.     String username;
  25.     System.out.print("\nEnter your username: ");
  26.     username = user_input.nextLine();
  27.     System.out.print ("\nWelcome to Casey's Classic Coffee, " + username + "! \n");
  28.  
  29.     //call methods
  30.     displayMenu();
  31.     displayOutput();
  32.  
  33.     System.out.println("\nThank you " + username + "! Have a nice day!");
  34. }
  35.  
  36. //outputs the menu to the screen
  37. public static void displayMenu()
  38. {
  39.     System.out.println ("\n\tItem\t\tCost\n\t1. Coffee\t$1.50\n\t2. Latte\t$3.50\n\t3. Cappuccino\t$3.25\n\t4. Espresso\t$2.00");
  40. }
  41.  
  42. //prompts the user to enter item number, returns user input
  43. public static int getItemNumber() //error: ; expected
  44. {
  45.     System.out.print ("\nPlease enter the desired item number: ");
  46.     return user_input.nextInt();
  47. }
  48.  
  49. //prompts user to enter quantity, returns user input
  50. public static int getQuantity() //error: ; expected
  51. {
  52.     System.out.print ("\nPlease enter the quantity: ");
  53.     return user_input.nextInt();  
  54. }
  55.  
  56. //takes the item number and quantity and returns the subtotal
  57. public static double computeSubTotal () //error: ; expected
  58. {
  59.     int number = getItemNumber();
  60.     int quantity = getQuantity();
  61.  
  62.     // Used final double in order to make coffee shop items constant
  63.     final double COFFEE = 1.50;
  64.     final double LATTE = 3.50;
  65.     final double CAPPUCCINO = 3.25;
  66.     final double ESPRESSO = 2.00;
  67.  
  68.     //double cost = 0;
  69.  
  70.     if (number == 1)
  71.         cost = quantity * COFFEE;
  72.     else if (number == 2)
  73.         cost = quantity * LATTE;
  74.     else if (number == 3)
  75.         cost = quantity * CAPPUCCINO;
  76.     else if (number == 4)
  77.         cost = quantity * ESPRESSO;
  78.     return cost;
  79. }
  80.  
  81. //takes the subtotal and returns true if the user earned a discount; otherwise, returns false
  82. public static boolean discountCheck () //error: ; expected
  83. {
  84.     if (cost >= 10)
  85.         return true;
  86.     return false;
  87. }
  88.  
  89. //takes the subtotal and returns the dollar amount of the discount earned by the user
  90. public static double computeDiscount () //error: ; expected
  91. {
  92.     if (discountCheck())
  93.     {
  94.         discount = cost * 0.10;
  95.     }
  96.     else
  97.     {
  98.         discount = 0;
  99.     }
  100.     return discount;
  101. }
  102.  
  103. //takes the subtotal and the discount amount and returns the price after the discount is applied
  104. public static double computePriceAfterDiscount () //error: ; expected
  105. {
  106.     //double discount = 0; 
  107.     //double Discounted_cost = 0;
  108.  
  109.     Discounted_cost = cost - discount;
  110.     return Discounted_cost; 
  111. }
  112.  
  113. //takes the prices after the discount is applied and tax rate and returns the tax amount
  114. public static double computeTax() //error: ; expected
  115. {
  116.     tax = Discounted_cost * 0.07;
  117.     return tax;
  118. }
  119.  
  120. //takes the price after the discount is applied and the tax amount and returns the final total
  121. public static double computeTotal() //says ; expected
  122. {
  123.     Total_cost = Discounted_cost + tax;
  124.     return Total_cost;
  125. }
  126.  
  127. //takes the subtotal, discount amount, price after discount, tax, and final total and displays all the lines of output to the user
  128. public static void displayOutput() //says ; expected at the end of method header
  129. {
  130.     //call methods
  131.     cost = computeSubTotal();
  132.     discount = computeDiscount();
  133.     Discounted_cost = computePriceAfterDiscount();
  134.     tax = computeTax();
  135.     Total_cost = computeTotal();
  136.  
  137.     System.out.printf ("\nTotal before discount and tax: $%.2f\n ", cost);
  138.  
  139.     System.out.printf("\nCalculated discount: $%.2f\n", discount);
  140.     System.out.printf("\nTotal after special discount: $%.2f\n", Discounted_cost);
  141.  
  142.     System.out.printf("\nTax: $%.2f\n", tax); 
  143.     System.out.printf ("\nTotal cost: $%.2f\n", Total_cost);
  144. }
  145. }
Success #stdin #stdout 0.11s 380736KB
comments (?)
stdin 
u
3
2
stdout 
Enter your username: 
Welcome to Casey's Classic Coffee, u! 

	Item		Cost
	1. Coffee	$1.50
	2. Latte	$3.50
	3. Cappuccino	$3.25
	4. Espresso	$2.00

Please enter the desired item number: 
Please enter the quantity: 
Total before discount and tax: $6.50
 
Calculated discount: $0.00

Total after special discount: $6.50

Tax: $0.46

Total cost: $6.96

Thank you u! Have a nice day!
https://ideone.com/ta0R21
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
secret

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