Added Our Project-Canteen Management and Billing System

BCT/Banking_system/Canteen Management and Billing System/main.c

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+/*
+    PROJECT NAME --> CANTEEN MANAGEMENT AND BILLING SYSTEM
+    TEAM MEMBERS --> ROJAN BHATTARAI , SANDEEP JAISWAL , SAMIR ADHIKARI , RISHAV JAISWAL
+
+*/
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#define OWNER_PASSWORD "admin"
+
+
+struct Menu {
+    int id;
+    char name[50];
+    float price;
+};
+
+
+void addItem() {
+    struct Menu items[100], item;
+    int count = 0, i;
+    FILE *fp = fopen("canteen.txt", "r");
+
+
+    if (fp != NULL) {
+        while (fscanf(fp, "%d %s %f", &items[count].id, items[count].name, &items[count].price) != EOF) {
+            count++;
+        }
+        fclose(fp);
+    }
+
+
+    printf("Enter Item ID: ");
+    scanf("%d", &item.id);
+
+
+    for (i = 0; i < count; i++) {
+        if (items[i].id == item.id) {
+            printf("Item ID already exists! Try again.\n");
+            return;
+        }
+    }
+
+    printf("Enter Item Name(Use '_' instead of spaces): ");
+    scanf(" %[^\n]s", item.name);
+    printf("Enter Item Price: ");
+    scanf("%f", &item.price);
+
+
+    items[count++] = item;
+    for (i = 0; i < count - 1; i++) {
+        for (int j = i + 1; j < count; j++) {
+            if (items[i].id > items[j].id) {
+                struct Menu temp = items[i];
+                items[i] = items[j];
+                items[j] = temp;
+            }
+        }
+    }
+
+
+    fp = fopen("canteen.txt", "w");
+    for (i = 0; i < count; i++) {
+        fprintf(fp, "%d %s %.2f\n", items[i].id, items[i].name, items[i].price);
+    }
+    fclose(fp);
+
+    printf("Item added successfully!\n");
+}
+
+
+
+void viewItems() {
+    struct Menu item;
+    FILE *fp = fopen("canteen.txt", "r");
+
+    if (fp == NULL) {
+        printf("Error opening file!\n");
+        return;
+    }
+
+    printf("\nID\tName\tPrice\n");
+    printf("----------------------------\n");
+    while (fscanf(fp, "%d %s %f", &item.id, item.name, &item.price) != EOF) {
+        printf("%d\t%s\t%.2f\n", item.id, item.name, item.price);
+    }
+
+    fclose(fp);
+}
+
+
+
+void deleteItem() {
+    struct Menu items[100];
+    int count = 0, deleteId, i, found = 0;
+    FILE *fp = fopen("canteen.txt", "r");
+
+    if (fp == NULL) {
+        printf("Error opening file!\n");
+        return;
+    }
+
+
+    while (fscanf(fp, "%d %s %f", &items[count].id, items[count].name, &items[count].price) != EOF) {
+        count++;
+    }
+    fclose(fp);
+    viewItems();
+
+    printf("Enter Item ID to delete: ");
+    scanf("%d", &deleteId);
+
+
+    for (i = 0; i < count; i++) {
+        if (items[i].id == deleteId) {
+            found = 1;
+            for (int j = i; j < count - 1; j++) {
+                items[j] = items[j + 1];
+            }
+            count--;
+            break;
+        }
+    }
+
+    if (!found) {
+        printf("Item not found!\n");
+        return;
+    }
+
+    fp = fopen("canteen.txt", "w");
+    for (i = 0; i < count; i++) {
+        fprintf(fp, "%d %s %.2f\n", items[i].id, items[i].name, items[i].price);
+    }
+    fclose(fp);
+
+    printf("Item deleted successfully!\n");
+}
+
+
+
+int ownerLogin() {
+    char password[50];
+    printf("Enter Admin Password: ");
+    scanf("%s", password);
+
+    if (strcmp(password, OWNER_PASSWORD) == 0) {
+        return 1;
+    } else {
+        printf("Incorrect password! Access denied.\n");
+        return 0;
+    }
+}
+
+
+
+void ownerSection() {
+    if (!ownerLogin()) {
+        return; 
+    }
+
+    int choice;
+    while (1) {
+        printf("\nOwner Section\n");
+        printf("1. Add Item\n");
+        printf("2. Delete Item\n");
+        printf("3. View Items\n");
+        printf("4. Exit Owner Section\n");
+        printf("Enter your choice(numbers only): ");
+        scanf("%d", &choice);
+
+        switch (choice) {
+            case 1:
+                addItem();
+                break;
+            case 2:
+                deleteItem();
+                break;
+            case 3:
+                viewItems();
+                break;
+            case 4:
+                return; 
+            default:
+                printf("Invalid choice! Please try again.\n");
+        }
+    }
+}
+
+
+
+
+
+void placeOrder() {
+    struct Menu item;
+    int orderId, quantity;
+    float total = 0;
+    FILE *fp = fopen("canteen.txt", "r");
+    FILE *orderFile = fopen("orders.txt", "a"); 
+
+    if (fp == NULL) {
+        printf("Error opening menu file!\n");
+        return;
+    }
+    if (orderFile == NULL) {
+        printf("Error opening orders file!\n");
+        fclose(fp);
+        return;
+    }
+
+    printf("\nAvailable Menu:\n");
+    viewItems();
+
+    printf("\nEnter Item ID to order (0 to finish): ");
+    scanf("%d", &orderId);
+
+    while (orderId != 0) {
+        printf("Enter Quantity: ");
+        scanf("%d", &quantity);
+
+        int found = 0;
+        rewind(fp); 
+        while (fscanf(fp, "%d %s %f", &item.id, item.name, &item.price) != EOF) {
+            if (item.id == orderId) {
+                found = 1;
+                printf("Added %d x %s (%.2f each)\n", quantity, item.name, item.price);
+                total += item.price * quantity;
+
+
+                fprintf(orderFile, "Order ID: %d, Food Name: %s, Quantity: %d, Total Price: %.2f\n",
+                        item.id, item.name, quantity, item.price * quantity);
+                break;
+            }
+        }
+
+        if (!found) {
+            printf("Item not found!\n");
+        }
+
+        printf("\nEnter Item ID to order (0 to finish): ");
+        scanf("%d", &orderId);
+    }
+
+    if (total > 0) {
+
+        fprintf(orderFile, "Total Order Price: %.2f\n", total);
+
+        fprintf(orderFile, "----------------------------------------\n");
+        printf("\nYour total bill is: %.2f\n", total);
+    } else {
+        printf("No items ordered.\n");
+    }
+
+    fclose(fp);
+    fclose(orderFile);
+}
+
+
+
+void orderSection() {
+    int choice;
+    while (1) {
+        printf("\nOrder Section\n");
+        printf("1. View Menu\n");
+        printf("2. Place Order\n");
+        printf("3. Exit\n");
+        printf("Enter your choice: ");
+        scanf("%d", &choice);
+
+        switch (choice) {
+            case 1:
+                viewItems();
+                break;
+            case 2:
+                placeOrder();
+                break;
+            case 3:
+                return; 
+            default:
+                printf("Invalid choice! Please try again.\n");
+        }
+    }
+}
+
+
+
+int main() {
+    int choice;
+
+
+    while (1) {
+
+        printf("\n");
+        printf("========================================\n");
+        printf("    **** CANTEEN MANAGEMENT ****\n");
+        printf("       **** AND BILLING ****\n");
+        printf("         **** SYSTEM ****\n");
+        printf("========================================\n");
+        printf("\n");
+
+        printf("\n");
+        printf("1. Owner Login\n");
+        printf("2. Menu and Order\n");
+        printf("3. Exit\n");
+        printf("Enter your choice(numbers only): ");
+
+
+
+         if (scanf("%d", &choice) != 1) {
+            printf("Invalid input! Please enter a number.\n");
+            while (getchar() != '\n'); 
+            continue; 
+
+        }
+
+        switch (choice) {
+            case 1:
+                ownerSection();
+                break;
+            case 2:
+                orderSection();
+                break;
+            case 3:
+                exit(0);
+            default:
+                printf("Invalid choice! Please try again.\n");
+
+        }
+    }
+
+    return 0;
+}

BCT/Banking_system/Canteen Management and Billing System/readme.md

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+# 🍽️ Canteen Management & Billing System
+
+## 📌 Project Overview
+The **Canteen Management & Billing System** is a C-based application designed to streamline the ordering, billing, and inventory management process in a canteen. This project automates manual processes, enhances efficiency, and provides an interactive and user-friendly interface for both customers and canteen staff.
+
+## 🎯 Key Features
+- 📋 **Menu Management:** Add, update, and remove food items dynamically.
+- 💰 **Billing System:** Auto-generates bills based on user orders.
+- 📦 **Inventory Tracking:** Keeps track of available stock.
+- 🛒 **Order Processing:** Multiple order handling with easy modifications.
+- 📊 **Report Generation:** Provides sales reports for better financial tracking.
+
+## 💡 Project Concept
+In a fast-paced environment like a canteen, manually managing orders and bills is inefficient and error-prone. Our system simplifies operations by integrating all essential features into a single platform, ensuring accuracy and saving time for both customers and staff.
+
+## 👥 Team Members & Contributions
+- **Samir Adhikari** → ✍️ Program Writer (Developed core functionality & logic)
+- **Rishab Jaiswal** → 🎨 Layout Designer (Designed the workflow of the program)
+- **Sandeep Jaiswal** → 🔍 Resources Collector (Gathered data & resources for project)
+- **Rojan Bhattarai** → 🛠️ Program Tester & Leader (Debugging, testing & team coordination)
+
+## 🛠️ Technologies & Tools Used
+- **Programming Language:** C
+- **Development Environment:** Code::Blocks / VS CODE
+- **Libraries Used:** Standard C libraries for file handling, struct-based data management
+
+## How to use the program
+-Open the main.c file along with canteen.txt in your C compiler and run it

BCT/Canteen-Management-and-Billing-System/README.md

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+# 🍽️ Canteen Management & Billing System
+
+## 📌 Project Overview
+The **Canteen Management & Billing System** is a C-based application designed to streamline the ordering, billing, and inventory management process in a canteen. This project automates manual processes, enhances efficiency, and provides an interactive and user-friendly interface for both customers and canteen staff.
+
+## 🎯 Key Features
+- 📋 **Menu Management:** Add, update, and remove food items dynamically.
+- 💰 **Billing System:** Auto-generates bills based on user orders.
+- 📦 **Inventory Tracking:** Keeps track of available stock.
+- 🛒 **Order Processing:** Multiple order handling with easy modifications.
+- 📊 **Report Generation:** Provides sales reports for better financial tracking.
+
+## 💡 Project Concept
+In a fast-paced environment like a canteen, manually managing orders and bills is inefficient and error-prone. Our system simplifies operations by integrating all essential features into a single platform, ensuring accuracy and saving time for both customers and staff.
+
+## 👥 Team Members & Contributions
+- **Samir Adhikari** → ✍️ Program Writer (Developed core functionality & logic)
+- **Rishab Jaiswal** → 🎨 Layout Designer (Designed the workflow of the program)
+- **Sandeep Jaiswal** → 🔍 Resources Collector (Gathered data & resources for project)
+- **Rojan Bhattarai** → 🛠️ Program Tester & Leader (Debugging, testing & team coordination)
+
+## 🛠️ Technologies & Tools Used
+- **Programming Language:** C
+- **Development Environment:** Code::Blocks / VS CODE
+- **Libraries Used:** Standard C libraries for file handling, struct-based data management
+
+## How to use it
+-Open the main.c file along with canteen.txt and run it into your C compiler

BCT/Canteen-Management-and-Billing-System/canteen.txt

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+1 samosa 50.00
+2 chowmein 50.00
+3 momo 40.00
+4 parotha 40.00
+5 chanchiura 30.00
+6 chiya 15.00