vending_macine.c

//design a vending machine

#include <stdio.h>
#include <stdlib.h>

void Money(int);
void main()
{
	int choice, price = 0;

	while (1)
	{
		printf("\n\t\t\t***Vending Machine***\n");
		printf("\t\tName List of Beverge: \n\n");
		printf("1. Pepsi");
		printf("\t\t\tRs. 15.00\n");
		printf("2. Miranda");
		printf("\t\t\tRs. 15.00\n");
		printf("3. Mountain dew");
		printf("\t\t\tRs. 15.00\n");
		printf("4. Coca Cola");
		printf("\t\t\tRs. 13.00\n");
		printf("5. Revive");
		printf("\t\t\tRs. 20.00\n");
		printf("6. Nestle Milo");
		printf("\t\t\tRs. 25.00\n");
		printf("7. Cincau");
		printf("\t\t\tRs. 15.00\n");
		printf("8. Chrysthemum Tea");
		printf("\t\tRs. 15.00\n");
		printf("9. Lipton Ice Lemon Tea");
		printf("\t\tRs. 20.00\n");
		printf("10. Mineral water");
		printf("\t\tRs. 20.00\n");
		printf("11. Cadbury Black Forest");
		printf("\tRs. 50.00\n");
		printf("12. Kitkat");
		printf("\t\t\tRs. 35.00\n");
		printf("13. Crispy");
		printf("\t\t\tRs. 40.00\n");
		printf("14. Crunch");
		printf("\t\t\tRs. 15.00\n");
		printf("15. Mars");
		printf("\t\t\tRs. 20.00\n");
		printf("16. Kinder Bueno");
		printf("\t\tRs. 15.00\n");
		printf("17. White Kinder Bueno");
		printf("\t\tRs. 20.00\n");
		printf("18. Milky Bar");
		printf("\t\t\tRs. 15.00\n");
		printf("19. M&M");
		printf("\t\t\t\tRs. 50.00\n");
		printf("20. Choki Choki");
		printf("\t\t\tRs. 70.00\n");
		printf("0. Exit From Vending Machine.");
		printf("\n\nEnter your choice: ");
		scanf("%d", &choice);
		switch (choice)
		{
		case 1:
			printf("You choose Pepsi");
			price = 15;
			break;
		case 2:
			printf("You choose Miranda");
			price = 15;
			break;
		case 3:
			printf("You choose Mountain dew");
			price = 15;
			break;
		case 4:
			printf("You choose Coca Cola");
			price = 13;
			break;
		case 5:
			printf("You choose Revive");
			price = 20;
			break;
		case 6:
			printf("You choose Nestle Milo");
			price = 25;
			break;
		case 7:
			printf("You choose Cincau");
			price = 15;
			break;
		case 8:
			printf("You choose Chrysthemum Tea");
			price = 15;
			break;
		case 9:
			printf("You choose Lipton Ice Lemon Tea");
			price = 20;
			break;
		case 10:
			printf("You choose Mineral water");
			price = 20;
			break;
		case 11:
			printf("You choose Cadbury Black Forest");
			price = 50;
			break;
		case 12:
			printf("You choose Kitkat");
			price = 35;
			break;
		case 13:
			printf("You choose Crispy");
			price = 40;
			break;
		case 14:
			printf("You choose Crunch");
			price = 15;
			break;
		case 15:
			printf("You choose Mars");
			price = 20;
			break;
		case 16:
			printf("You choose Kinder Bueno");
			price = 15;
			break;
		case 17:
			printf("You choose White Kinder Bueno");
			price = 20;
			break;
		case 18:
			printf("You choose Milky Bar");
			price = 15;
			break;
		case 19:
			printf("You choose M&M");
			price = 50;
			break;
		case 20:
			printf("You choose Choki Choki");
			price = 70;
			break;
		case 0:
			exit(1);
		default:
			printf("Wrong choice..!!");
		}
		Money(price);
	}
}
void Money(int price)
{
	int money, xtra;

	printf("\n\nEnter Money: ");
	scanf("%d", &money);

	if (money == price)
	{
		printf("ACCEPTED..!!\n");
		printf("Please! Collect your item..");
	}
	else if (money < price)
	{
		xtra = price - money;
		printf("NOT ACCEPTED..!!\n");
		printf("Please! insert more money. (Rs. %d)", xtra);
	}
	else
	{
		xtra = money - price;
		printf("ACCEPTED..!!\n");
		printf("Please! collect your change. (Rs. %d)\n", xtra);
		printf("Please! Collect your item..");
	}
}