St-2 Project

Ecafe.java

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+package main;
+import java.sql.SQLException;
+import java.util.*;
+
+import DAO.databaseHandler;
+public class cafe {
+	private Date openTime = new Date();
+	private Date closeTime = new Date();
+	private Menu menu = new Menu();
+	private Order order;
+	public int orderTime[] = new int[2];
+
+	public cafe() {
+		openTime.setHours(4);
+		closeTime.setHours(10);
+	}
+	public boolean validOrderTime(int hour, int mint) {
+		if(openTime.getHours() > hour || closeTime.getHours() <= hour) {
+			return false;
+		}
+		else {
+			return true;
+		}
+	}
+	public static void main(String[] args) {
+		databaseHandler db_handler = new databaseHandler();
+		int itemID = 1, quantity = 0;
+		Date time = new Date();
+		Scanner sc=new Scanner(System.in);
+		cafe cafe = new cafe();
+		if (time.getHours()<cafe.openTime.getHours() || time.getHours()>=cafe.closeTime.getHours() ) {
+			System.out.println("=========> Cafe 420 is closed now. <=========");
+		}
+		else {
+			for(;;) {
+				cafe.order = new Order();
+				System.out.println("\n\t     =========> Welcome to Cafe 420 <=========");
+				System.out.println();
+				cafe.menu.showMenu();
+				System.out.println("=> Type 0 to place the order:-");
+				for(;;) {
+					System.out.print("Type the Item ID: ");
+					itemID = sc.nextInt();
+					if (itemID == 0)
+						break;
+					System.out.print("=> Quantity of Item-"+itemID+": ");
+					quantity = sc.nextInt();
+					cafe.order.addItem(itemID, quantity);
+
+				}
+				if (itemID == 0) {
+					System.out.println("1. Home Delivery");
+					System.out.println("2. Self Pick-up");
+					int orderType = sc.nextInt();
+					if (orderType == 1) {
+						cafe.order.setOrderType("delivery");
+						System.out.print("Type the delivery address: ");
+						cafe.order.deliveryAddress = sc.next();
+						cafe.order.placeOrder();
+						System.out.println("Bill = Rs."+cafe.order.getBill());
+						try {
+							db_handler.prep_stmt = db_handler.conn.prepareStatement("insert into order_tbl (type, delivery_addr, bill) values (?,?,?);");
+							db_handler.prep_stmt.setString(1, "delivery");
+							db_handler.prep_stmt.setString(2, cafe.order.deliveryAddress);
+							db_handler.prep_stmt.setInt(3, cafe.order.getBill());
+
+							int affected_tuples = db_handler.prep_stmt.executeUpdate();
+							db_handler.prep_stmt.close();
+
+						}catch(SQLException se){
+						   se.printStackTrace();
+						}
+					}
+					else if (orderType == 2) {
+						cafe.order.setOrderType("pickup");
+						System.out.println("Enter pick up time (24-h format => <hrs mints>):");
+						cafe.orderTime[0] = sc.nextInt();
+						cafe.orderTime[1] = sc.nextInt();
+						if (cafe.validOrderTime(cafe.orderTime[0],cafe.orderTime[1])) {
+							cafe.order.pickupTime.setHours(cafe.orderTime[0]);
+							cafe.order.pickupTime.setMinutes(cafe.orderTime[1]);
+							cafe.order.placeOrder();
+							System.out.println(cafe.order.getBill());
+							try {
+								db_handler.prep_stmt = db_handler.conn.prepareStatement("insert into order_tbl (type, pickupTime, bill) values (?,?,?)");
+								db_handler.prep_stmt.setString(1, "pickup");
+								db_handler.prep_stmt.setDate(2, (java.sql.Date) cafe.order.pickupTime);
+								db_handler.prep_stmt.setInt(3, cafe.order.getBill());
+
+								int affected_tuples = db_handler.prep_stmt.executeUpdate();
+
+								db_handler.prep_stmt.close();
+							}catch(SQLException se){
+							   se.printStackTrace();
+							}
+						}
+						else {
+							System.out.println("Your order cannot be placed at this time");
+						}
+					}
+				}
+			}
+		}
+	}
+}

Item.java

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+package main;
+public class Item {
+	protected String name;
+	protected String category;
+	protected int price
+	public Item() {
+	}
+	public Item(String itemName, String itemCategory, int itemPrice) {
+		this.name = itemName;
+		this.category = itemCategory;
+		this.price = itemPrice;
+	}
+	public void setPrice(int itemPrice) {
+		this.price = itemPrice;
+	}
+	public void setName(String itemName) {
+		this.name = itemName;
+	}
+	public void setCategory(String itemCategory) {
+		this.category = itemCategory;
+	}
+	public int getPrice() {
+		return this.price;
+	}
+	public String getName() {
+		return this.name;
+	}
+	public String getCategory() {
+		return this.category;
+	}
+}

ItemPreparation.java

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+package main;
+
+public class ItemPreparation extends Item {
+	private short cooksAvailable;
+	private int preparationTime;
+	public ItemPreparation() {
+		cooksAvailable = 4;
+	}
+	public int getAvailableCooks() {
+		return this.cooksAvailable;
+	}	
+	public void prepareItem(String itemName) {
+		if(getAvailableCooks() > 0) {
+			cooksAvailable--;
+		}
+		else {
+			System.out.println("No cook is available. Kindly wait");
+		}
+	}
+}

Menu.java

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+package main;
+import java.sql.*;
+import java.util.Scanner;
+
+import DAO.databaseHandler;
+
+public class Menu {
+	databaseHandler db_handler = new databaseHandler();
+	Scanner sc=new Scanner(System.in);	
+	public Menu() {		
+	}	
+	public void addItem() {
+		System.out.print("Item name: ");
+		String item_name = sc.nextLine();
+		System.out.print("Item category: ");
+		String item_category = sc.nextLine();
+		System.out.print("Item price: ");
+		int item_price = sc.nextInt();
+		try {
+			db_handler.prep_stmt = db_handler.conn.prepareStatement("insert into items_tbl (name, category, price) values (?,?,?)");
+			db_handler.prep_stmt.setString(1, item_name);
+			db_handler.prep_stmt.setString(2, item_category.toString());
+			db_handler.prep_stmt.setInt(3, item_price);
+
+			int affected_tuples = db_handler.prep_stmt.executeUpdate();
+
+			db_handler.prep_stmt.close();
+		}catch(SQLException se){
+		   se.printStackTrace();
+		}
+	}	
+	public void removeItem() {
+		System.out.print("Item name: ");
+		String item_name = sc.nextLine();
+		try {
+			db_handler.call_stmt = db_handler.conn.prepareCall("{call deleteItem(\""+item_name+"\")}");
+			//db_handler.prep_stmt = db_handler.conn.prepareStatement("delete from items_tbl where name = ?");
+			//db_handler.prep_stmt.setString(1,item_name);
+			int affected_tuples = db_handler.call_stmt.executeUpdate();
+
+			db_handler.call_stmt.close();
+		}catch(SQLException se){
+		   se.printStackTrace();
+		}
+	}	
+	public void showMenu() {
+		System.out.println(" MENU ");
+		System.out.println("Item ID    ||     Item Name       ||       Category        ||      Price");
+		try {
+			db_handler.prep_stmt = db_handler.conn.prepareStatement("select * from items_tbl");
+			ResultSet items = db_handler.prep_stmt.executeQuery();
+			while(items.next()) {
+				System.out.printf("   %-12d%-24s%-22s%-10d",items.getInt("item_id"),items.getString("name"),items.getString("category"), items.getInt("price"));
+				System.out.println();
+			}
+			items.close();
+			db_handler.prep_stmt.close();
+		}catch(SQLException se){
+		   se.printStackTrace();
+		}
+		System.out.println("------------------------------------------------------------------");
+	}
+}

Order.java

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+package main;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Date;
+
+import DAO.databaseHandler;
+
+public class Order {
+	databaseHandler db_handler = new databaseHandler();
+	private String type;
+	private int bill;
+	private ItemPreparation prepareItem;
+	public String deliveryAddress;
+	public Date pickupTime = new Date();
+	private ArrayList<Integer> itemQuantity = new ArrayList<>();
+	private ArrayList<Integer> orderItems = new ArrayList<>();	
+	public Order() {
+		prepareItem = new ItemPreparation();
+		deliveryAddress = null;
+		bill = 0;
+		type = null;
+	}
+	public boolean isDelivery() {
+		return type.equals("delivery") ? true: false;
+	}
+	public boolean isPickup() {
+		return type.equals("pickup") ? true: false;
+	}
+	public void addItem(int item, int quantity) {
+		try {
+			db_handler.stmt = db_handler.conn.createStatement();
+			int tuples = db_handler.stmt.executeUpdate("insert into order_items_tbl (item_id, quantity) values ("+item+","+quantity+")");
+			db_handler.stmt.close();			
+		}catch(SQLException se){
+		   se.printStackTrace();
+		}		
+		orderItems.add(item);
+		itemQuantity.add(quantity);
+	}	
+	public String getOrderType() {
+		return type;
+	}	
+	public void setOrderType(String orderType) {
+		this.type = orderType;
+	}
+	public void placeOrder() {
+		calcBill();
+		if (prepareItem.getAvailableCooks()!=0) {
+			System.out.println("Your order is placed");
+		}
+	}
+	public int calcBill() {
+		for (int i=0; i<orderItems.size(); i++) {
+			try {
+				db_handler.prep_stmt = db_handler.conn.prepareStatement("select price from items_tbl where item_id = ?");
+				db_handler.prep_stmt.setInt(1,orderItems.get(i));
+				ResultSet items = db_handler.prep_stmt.executeQuery();
+				if(items.next()) {
+					bill += items.getInt("price")*itemQuantity.get(i);
+				}
+				items.close();
+				db_handler.prep_stmt.close();
+			}catch(SQLException se){
+				se.printStackTrace();
+			}
+		}
+		return bill;
+	}	
+	public int getBill() {
+		return bill;
+	}
+}