Add files via upload

Author: TejasKoshti

BLClass.java

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+package Day7.Task;
+
+import java.util.HashMap;
+
+public class BLClass {
+
+    private HashMap<String, Double> productMap = new HashMap<String, Double>();
+
+    public void buyProduct(String productName, double productPrice) {
+        productMap.put(productName, productPrice);
+        System.out.println("Product bought: " + productName);
+    }
+
+    public void cancelProduct(String productName) {
+        if (productMap.containsKey(productName)) {
+            productMap.remove(productName);
+            System.out.println("Product canceled: " + productName);
+        } else {
+            System.out.println("Product not found");
+        }
+    }
+
+    public void displayAllProducts() {
+        for (String productName : productMap.keySet()) {
+            System.out.println(productName + ": " + productMap.get(productName));
+        }
+    }
+}
+

Customer.java

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+package Day7.Task;
+
+public class Customer {
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public int getPassword() {
+        return password;
+    }
+
+    public void setPassword(int password) {
+        this.password = password;
+    }
+
+    public Customer(String name, int password) {
+        this.name = name;
+        this.password = password;
+    }
+
+    private String name;
+    private int password;
+
+    @Override
+    public String toString() {
+        return "Customer{" +
+                "name='" + name + '\'' +
+                ", password=" + password +
+                '}';
+    }
+}

MainApp1.java

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+package Day7.Task;
+import java.util.HashMap;
+import java.util.Scanner;
+public class MainApp1 {
+    static HashMap<String, String> userMap = new HashMap<>();
+    static Scanner sc = new Scanner(System.in);
+    static BLClass bl = new BLClass();
+
+
+    public static void main(String[] args) {
+        // Add some users to the userMap
+        userMap.put("user1", "password1");
+        userMap.put("user2", "password2");
+
+
+        boolean status = false;
+        while (!status) {
+            displayMenu();
+            int choice = sc.nextInt();
+            switch (choice) {
+                case 1:
+                    login();
+                    break;
+                case 2:
+                    buyProduct();
+                    break;
+                case 3:
+                    cancelProduct();
+                    break;
+                case 4:
+                    bl.displayAllProducts();
+                    break;
+                case 5:
+                    logout();
+                    break;
+                case 6:
+                    status = true;
+                    break;
+                default:
+                    System.out.println("Invalid choice");
+            }
+        }
+    }
+
+    private static void displayMenu() {
+        System.out.println("=================================");
+        System.out.println("1. Log in");
+        System.out.println("2. Buy product");
+        System.out.println("3. Cancel product");
+        System.out.println("4. Display all products");
+        System.out.println("5. Sign out");
+        System.out.println("6. Exit");
+        System.out.println("==================================");
+        System.out.print("Enter your choice: ");
+    }
+
+    private static void login() {
+        System.out.print("Enter username: ");
+        String username = sc.next();
+        System.out.print("Enter password: ");
+        int password=sc.nextInt();
+        if (userMap.containsKey(username)) {
+            userMap.get(username);
+        }
+
+
+        System.out.println("Login successful");
+        }  {
+            System.out.println("Invalid username or password");
+        }
+
+
+        private static void buyProduct() {
+            int loggedInUser=0;
+            if (loggedInUser == 0) {
+                System.out.print("Enter product name: ");
+                String productName = sc.next();
+                System.out.print("Enter product price: ");
+                double productPrice = sc.nextDouble();
+                bl.buyProduct(productName, productPrice);
+            } else {
+                System.out.println("You need to log in first");
+            }
+        }
+
+        private static void cancelProduct() {
+            int loggedInUser=0;
+            if (loggedInUser == 0) {
+                System.out.print("Enter product name: ");
+                String productName = sc.next();
+                bl.cancelProduct(productName);
+            } else {
+                System.out.println("You need to log in first");
+            }
+        }
+
+        private static void logout() {
+            System.out.println("Logged out");
+        }
+    }