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  1. //Sam Partovi                          CS1A                     Second Practicum
  2. /*******************************************************************************
  3.  * SIMULATE VENDING MACHINE
  4.  * 
  5.  * This program simulates a vending machine with specified drinks, with given
  6.  * costs and quantity of drinks stored. The program displays a menu of available
  7.  * drinks for selection. 
  8. --------------------------------------------------------------------------------
  9. *INPUT
  10. * SIZE          :  Number of drinks available
  11. * name          :  Drink name
  12. * cost          :  Cost ($) of drink
  13. * supply        :  Drink quantity in machine
  14. * choice        :  Selected menu option
  15. * moneyInserted :  Money ($) paid to machine
  16. *
  17. *OUTPUT
  18. * machineEarnings : Money ($) earned by machine
  19. * Menu of available drinks.
  20. *******************************************************************************/
  21. #include <iostream>
  22. #include <iomanip>
  23. #include <string>
  24. using namespace std;
  25.  
  26. const int SIZE = 5;   //INPUT - Number of drinks available
  27.  
  28. struct Drinks {
  29. 	string name;  //INPUT - Drink name
  30. 	float cost;   //INPUT - Cost ($) of drink
  31. 	int supply;   //INPUT - Drink quantity in machine
  32. };
  33.  
  34. //Function prototype for DisplayMenu
  35.  void DisplayMenu(Drinks drink[SIZE], int choice);
  36.  
  37. int main() {
  38.  
  39.    //Assign drink information to each drink
  40. 	Drinks drink[SIZE] = {
  41. 		{"Cola", 0.75, 20},
  42. 		{"Root Beer", 0.75, 20},
  43. 		{"Lemon-Lime", 0.75, 20},
  44. 		{"Grape Soda", 0.80, 20},
  45. 		{"Cream Soda", 0.80, 20}
  46. 	};
  47.  
  48. 	int choice;                 //INPUT - Selected menu option
  49. 	float moneyInserted;        //INPUT - Money ($) paid to machine
  50. 	float machineEarnings;     //OUTPUT - Money ($) earned by machine
  51.  
  52. 	moneyInserted = 0;
  53. 	machineEarnings = 0;
  54.  
  55. 	do {
  56. 	   //Call DisplayMenu function
  57. 		DisplayMenu(drink, choice);
  58.  
  59. 	   //Prompt for drink selection
  60. 		cin >> choice;
  61.  
  62. 	   //Prompt for moneyInserted if drink is available
  63. 		if (choice != 99 && drink[choice - 1].supply > 0) {
  64. 			cout << "\nInsert money: "; 
  65. 			cin >> moneyInserted;
  66. 		}
  67.  
  68. 	   //Display error if drink is out of stock
  69. 		if (drink[choice - 1].supply <= 0 && choice != 99) {
  70. 			cout << "\nError: Item is out of stock."; 
  71.  
  72. 		}
  73.  
  74. 	   //Dispense drink if money has been inserted
  75. 		if (moneyInserted > 0) {
  76. 			if(drink[choice - 1].cost <= moneyInserted) {
  77. 			 cout << "\nDispensing " << drink[choice - 1].name << "..." << endl;
  78.  
  79. 			//Display change to be returned
  80. 			 cout << fixed << setprecision(2) << "Your change is $"
  81. 			      << moneyInserted - drink[choice - 1].cost << ".\n" << endl;
  82.  
  83. 			//Add cost of chosen drink to total machine earnings
  84. 			 machineEarnings += drink[choice - 1].cost;
  85.  
  86. 			//Decrement drink quantity in machine
  87. 			 drink[choice - 1].supply--;
  88. 			}
  89.  
  90. 		   //Display error if moneyInserted is not enough for chosen drink
  91. 			else cout << "\nError: Not enough money inserted.";
  92. 		}
  93.  
  94. 	   //Display error if invalid amount of money inserted
  95. 		else cout << "\nError: Must insert more than $0.";
  96. 	} while (choice != 99);           //Terminate loop if 99 is entered
  97.  
  98. //Display total machine earnings
  99.  cout << fixed << setprecision(2) << "\nMachine earned $" << machineEarnings;
  100.  
  101. 	return 0;
  102.  
  103. }
  104.  
  105. /*******************************************************************************
  106.  *Function definition for DisplayMenu:
  107.  * This function displays a menu of available drinks and allows for drink
  108.  * selection. 
  109.  ******************************************************************************/
  110.  void DisplayMenu(Drinks drink[SIZE], int choice) {
  111.   cout << "Menu:" << endl;
  112.  
  113.    //Display each drink in a numbered list
  114.  	for(int i = 0; i < SIZE; i++) {
  115.  	 cout << i + 1 << ". " << drink[i].name << endl;
  116.  	}
  117.  	cout << "Enter 99 to Quit" << endl;
  118.  }
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Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cola...
Your change is $1.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cola...
Your change is $2.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cola...
Your change is $1.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cola...
Your change is $2.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cola...
Your change is $3.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cream Soda...
Your change is $0.20.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Root Beer...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Lemon-Lime...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Root Beer...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cola...
Your change is $1.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cola...
Your change is $2.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cola...
Your change is $1.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cola...
Your change is $2.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cola...
Your change is $3.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cream Soda...
Your change is $0.20.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Root Beer...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Lemon-Lime...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Root Beer...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Lemon-Lime...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Grape Soda...
Your change is $4.20.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cola...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Root Beer...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Lemon-Lime...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Grape Soda...
Your change is $4.20.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Grape Soda...
Your change is $4.20.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cola...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Root Beer...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Lemon-Lime...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Grape Soda...
Your change is $4.20.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Grape Soda...
Your change is $4.20.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Lemon-Lime...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Grape Soda...
Your change is $4.20.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cola...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Root Beer...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Lemon-Lime...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Grape Soda...
Your change is $4.20.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Grape Soda...
Your change is $4.20.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Cola...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Root Beer...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Lemon-Lime...
Your change is $0.25.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Grape Soda...
Your change is $4.20.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Insert money: 
Dispensing Grape Soda...
Your change is $4.20.

Menu:
1. Cola
2. Root Beer
3. Lemon-Lime
4. Grape Soda
5. Cream Soda
Enter 99 to Quit

Dispensing ...
Your change is $5.00.


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https://ideone.com/Ozty67
language:
C++ (gcc 8.3)
created:
11 days ago
visibility:
public

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