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  1. //Mia Agramon                       CS1A                  Chapter 11, P.648, #13
  2. //
  3. /*******************************************************************************
  4.  * Drink Dispenser
  5.  * _____________________________________________________________________________
  6.  * This programs simulates a drink machine that dispense: cola, root beer,
  7.  * lemon-lime, grape soda, and cream soda.
  8.  * 
  9.  * INPUT
  10.  *    pick a drink
  11.  *    payment
  12.  * OUTPUT
  13.  *    drink
  14.  *    change
  15.  *    total amount of money earned
  16.  ******************************************************************************/
  17.  
  18. #include <iostream>
  19. #include <string>
  20. #include <iomanip>
  21. using namespace std;
  22.  
  23. struct vendingMachine
  24. {
  25. 	string drinkName;
  26. 	float drinkCost;
  27. 	int amountDrinks;
  28. };
  29.  
  30. //Function Prototype
  31. void menu (vendingMachine soda[], int numDrinks, float &moneyEarned);
  32.  
  33. //Global Constants
  34. const int numDRINKS = 5;
  35.  
  36. int main() 
  37. {
  38. 	//Initialize Variables
  39. 	int choice = 0;
  40. 	float payment;
  41. 	float change;
  42. 	float moneyEarned = 0;
  43.  
  44. 	vendingMachine drinks[numDRINKS] = {
  45. 	                                   {"Cola", 0.75, 20},
  46. 	                                   {"Root Beer", 0.75, 20},
  47. 	                                   {"Lemon-Lime", 0.75, 20},
  48. 	                                   {"Grape Soda", 0.80, 20},
  49. 	                                   {"Cream Soda", 0.80, 20},
  50. 	                                   };
  51.  
  52. 	cout << setprecision(2) << fixed << showpoint;
  53.  
  54. 	//Call Function
  55. 	menu(drinks, numDRINKS, moneyEarned);
  56.  
  57. 	return 0;
  58. }
  59.  
  60. //Menu Function
  61. void menu (vendingMachine soda[], int numDrinks, float &moneyEarned)
  62. {
  63. 	int choice;
  64. 	float payment;
  65. 	float change;
  66. 	cout << "	MENU	" << endl;
  67. 	for (int i = 0; i < numDrinks; i++)
  68. 	{
  69. 		cout << i + 1 << ". " << soda[i].drinkName << " - $" << soda[i].drinkCost << endl;
  70. 	}
  71.  
  72. 	cout << "Please enter the number of the drink you want: ";
  73. 	cin >> choice;
  74. 	cout << endl;
  75.  
  76. 	//Input Validation
  77. 	if (choice < 1 || choice > numDrinks)
  78. 	{
  79. 		cout << "Invalid" << endl;
  80. 		menu(soda, numDrinks, moneyEarned);
  81. 		return;
  82. 	}
  83.  
  84. 	cout << "Enter money: " << soda[choice - 1].drinkCost;
  85. 	cin >> payment;
  86. 	cout << endl;
  87.  
  88. 	if (payment < soda[choice - 1].drinkCost)
  89. 	{
  90. 		cout << "Please try again." << endl;
  91. 		menu(soda, numDrinks, moneyEarned);
  92. 		return;
  93. 	}
  94.  
  95. 	soda[choice - 1].amountDrinks--;
  96. 	change = payment - soda[choice - 1].drinkCost;
  97. 	moneyEarned += soda[choice - 1].drinkCost;
  98.  
  99. 	cout << "Enjoy your " << soda[choice - 1].drinkName << "!" << endl;
  100. 	cout << "Change :$" << change << endl;
  101. }
Success #stdin #stdout 0.01s 5268KB
comments (?)
stdin 
1
1
stdout 
	MENU	
1. Cola - $0.75
2. Root Beer - $0.75
3. Lemon-Lime - $0.75
4. Grape Soda - $0.80
5. Cream Soda - $0.80
Please enter the number of the drink you want: 
Enter money: 0.75
Enjoy your Cola!
Change :$0.25
https://ideone.com/h2jfUN
ch11 #13
language:
C++ (gcc 8.3)
created:
13 days ago
visibility:
public

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