ITECH5403 Comparative Programming Languages

You are tasked with creating a program for a pizza shop –however, as this is a comparative languages course,.you will be creating the same application in the following programming languages:
 C,
 Python,
 Java and
 Lisp.

Answer:

Code Description Document C:

Our C code is a combination of two files

1. main.c

This file is the class having the main function. It uses the other file “Pizza.c” for its functionality. We have added an import for this Pizza.c file in this. 

The main function contains a loop which asks the user for one of three choices and then passes the control to Pizza.c file for the functionality of that function. 

main.c

#include "Pizza.c"  

while(1) 

printf("nnPizza Choices n");

printf("1. New Ordern");

printf("2. Display list of ordersn");

printf("3. Exitn");

printf("Enter your choice : ");

char val[5];

fgets(val, 5, stdin);

int value=atoi(val);

if(value==1)

newOrder();

else if(value==2)

dislayAll();

else if(value==3)

printf("nExiting...nn");

return 0;

else

printf("Please enter a valid choice.");

return 0;

Pizza.c

This is the main file which performs various functionalities related to this application.

It has two structures:

1.Pizza struct

typedef struct pizza

char size[10];

char toppings[5][10];

int tsize;

Pizza;

This Pizza structure denotes a Pizza.

It has three attributes:

size: size of pizza (small/medium/large

toppings : it can contain 5 toppings

tsize: it contains the number of toppings this pizza have

PizzaOrder struct

typedef struct pizzaorder

Pizza ** pizzas;

char status[20];

char name[20];

char phone[20];

char address[20];

int size;

PizzaOrder;

This structure have various attributes like:

pizzas: an array of pizza pointers

status: status of the order

name : name of the person

phone: phone number

address: address of the person

size: size of the pizza array

There are a number of functions like:

1.  printPizza

void printPizza(Pizza *pizza)

printf("Size : %sn",pizza->size);

printf("Toppings : n" );

int i=0;

for(i=0;i<pizza->tsize;i++)

printf("%st",pizza->toppings[i]);

printf("n");

This function prints the passed pizza pointer with its size and all other details

2. pizzaCost

double pizzaCost(Pizza* pizza)

double tot=0.0;

if(strcmp(pizza->size,"small")==0)

tot=5;

else if(strcmp(pizza->size,"medium")==0)

tot=8;

else if(strcmp(pizza->size,"large")==0) 

if(size==1)

orders=(PizzaOrder**)malloc(size*sizeof(PizzaOrder));

orders=(PizzaOrder**)realloc(orders,size*sizeof(PizzaOrder));

orders[size-1]=order;

printOrder(order);

This function makes a Pizza Order. Read various pizzas for this order and add this order to the list of orders. 

6. displayAll 

void dislayAll() 

printf("nList of Orders: n");

 int i;

for(i=0;i<size;i++) 

printOrder(orders[i]);

printf( 

This function prints all the orders with the brief details about each order.