Assignment Completed

Problem Statement 1.java

@@ -0,0 +1,29 @@
+public class MathOperation {
+    int firstNumber;
+    double doubleValue;
+    String text;
+
+    public void printCalculatedSum(int number1, int number2) {
+        int sum = number1 + number2;
+        System.out.println("Sum: " + sum);
+    }
+
+    public void printStringIntoUppercase(String oldString) {
+        String uppercaseString = oldString.toUpperCase();
+        System.out.println("String: " + uppercaseString);
+    }
+}
+
+public class MainProgram {
+    public static void main(String[] args) {
+        MathOperation mathOperation = new MathOperation();
+
+        mathOperation.firstNumber = 10;
+        mathOperation.doubleValue = 20.5;
+        mathOperation.text = "hello";
+
+        mathOperation.printCalculatedSum(mathOperation.firstNumber, 5);
+
+        mathOperation.printStringIntoUppercase("world");
+    }
+}

Problem Statement 2.java

@@ -0,0 +1,97 @@
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
+class Product {
+    private String name;
+    private double price;
+    private int quantity;
+
+    public Product(String name, double price, int quantity) {
+        this.name = name;
+        this.price = price;
+        this.quantity = quantity;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public double getPrice() {
+        return price;
+    }
+
+    public int getQuantity() {
+        return quantity;
+    }
+
+    public void setQuantity(int newQuantity) {
+        this.quantity = newQuantity;
+    }
+}
+
+class InventoryManager {
+    private List<Product> productList;
+
+    public InventoryManager() {
+        this.productList = new ArrayList<>();
+    }
+
+    public void addProduct(Product product) {
+        productList.add(product);
+    }
+
+    public List<Product> getInventory() {
+        return productList;
+    }
+}
+
+public class InventorySystem {
+    public static void main(String[] args) {
+        InventoryManager inventoryManager = new InventoryManager();
+        Scanner scanner = new Scanner(System.in);
+
+        while (true) {
+            System.out.println("\nInventory Management System");
+            System.out.println("1. Add Product");
+            System.out.println("2. Display Inventory");
+            System.out.println("3. Exit");
+            System.out.print("Enter your choice: ");
+
+            int choice = scanner.nextInt();
+
+            switch (choice) {
+                case 1:
+                    System.out.print("Enter product name: ");
+                    String productName = scanner.next();
+                    System.out.print("Enter product price: ");
+                    double productPrice = scanner.nextDouble();
+                    System.out.print("Enter product quantity: ");
+                    int productQuantity = scanner.nextInt();
+
+                    Product newProduct = new Product(productName, productPrice, productQuantity);
+                    inventoryManager.addProduct(newProduct);
+
+                    System.out.println("Product added successfully!");
+                    break;
+
+                case 2:
+                    System.out.println("\nCurrent Inventory:");
+                    List<Product> products = inventoryManager.getInventory();
+                    for (Product product : products) {
+                        System.out.println("Name: " + product.getName() +
+                                ", Price: $" + product.getPrice() +
+                                ", Quantity: " + product.getQuantity());
+                    }
+                    break;
+
+                case 3:
+                    System.out.println("Exiting program. Goodbye!");
+                    System.exit(0);
+
+                default:
+                    System.out.println("Invalid choice. Please enter a valid option.");
+            }
+        }
+    }
+}