Order book

App.js

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+import React, { useEffect, useState } from "react";
+
+function App() {
+  const [products, setProducts] = useState([]);
+  const [searchText, setSearchText] = useState("");
+  const [category, setCategory] = useState("All");
+  const [sortOrder, setSortOrder] = useState("asc");
+
+  // Custom home appliances products to add
+  const customHomeAppliances = [
+    {
+      id: 1001,
+      title: "Air Conditioner",
+      price: 499.99,
+      category: "home appliances",
+      image:
+        "https://cdn-icons-png.flaticon.com/512/684/684908.png",
+    },
+    {
+      id: 1002,
+      title: "Microwave Oven",
+      price: 149.99,
+      category: "home appliances",
+      image:
+        "https://cdn-icons-png.flaticon.com/512/2972/2972185.png",
+    },
+    {
+      id: 1003,
+      title: "Vacuum Cleaner",
+      price: 199.99,
+      category: "home appliances",
+      image:
+        "https://cdn-icons-png.flaticon.com/512/2965/2965567.png",
+    },
+  ];
+
+  useEffect(() => {
+    fetch("https://fakestoreapi.com/products")
+      .then((res) => res.json())
+      .then((data) => {
+        // Combine API data + custom home appliances
+        setProducts([...data, ...customHomeAppliances]);
+      });
+  }, []);
+
+  // Get unique categories + "All"
+  const categories = ["All", ...new Set(products.map((p) => p.category))];
+
+  // Filter and sort products
+  const filteredProducts = products
+    .filter(
+      (product) =>
+        (category === "All" || product.category === category) &&
+        product.title.toLowerCase().includes(searchText.toLowerCase())
+    )
+    .sort((a, b) =>
+      sortOrder === "asc" ? a.price - b.price : b.price - a.price
+    );
+
+  return (
+    <div
+      style={{
+        maxWidth: "1200px",
+        margin: "0 auto",
+        padding: "20px",
+        fontFamily: "Arial, sans-serif",
+        textAlign: "center",
+      }}
+    >
+      <h1>Welcome to Product Listing</h1>
+
+      {/* Controls */}
+      <div
+        style={{
+          marginBottom: "30px",
+          display: "flex",
+          justifyContent: "center",
+          gap: "15px",
+          flexWrap: "wrap",
+        }}
+      >
+        <input
+          type="text"
+          placeholder="Search products..."
+          value={searchText}
+          onChange={(e) => setSearchText(e.target.value)}
+          style={{
+            padding: "10px",
+            width: "250px",
+            fontSize: "16px",
+            borderRadius: "5px",
+            border: "1px solid #ccc",
+          }}
+        />
+
+        <select
+          value={category}
+          onChange={(e) => setCategory(e.target.value)}
+          style={{
+            padding: "10px",
+            fontSize: "16px",
+            borderRadius: "5px",
+            border: "1px solid #ccc",
+          }}
+        >
+          {categories.map((cat) => (
+            <option key={cat} value={cat}>
+              {cat.charAt(0).toUpperCase() + cat.slice(1)}
+            </option>
+          ))}
+        </select>
+
+        <select
+          value={sortOrder}
+          onChange={(e) => setSortOrder(e.target.value)}
+          style={{
+            padding: "10px",
+            fontSize: "16px",
+            borderRadius: "5px",
+            border: "1px solid #ccc",
+          }}
+        >
+          <option value="asc">Price: Low to High</option>
+          <option value="desc">Price: High to Low</option>
+        </select>
+      </div>
+
+      {/* Products grid */}
+      <div
+        style={{
+          display: "grid",
+          gridTemplateColumns: "repeat(auto-fill,minmax(220px,1fr))",
+          gap: "25px",
+          justifyItems: "center",
+        }}
+      >
+        {filteredProducts.length === 0 ? (
+          <p>No products found.</p>
+        ) : (
+          filteredProducts.map((product) => (
+            <div
+              key={product.id}
+              style={{
+                border: "1px solid #ddd",
+                borderRadius: "10px",
+                padding: "15px",
+                maxWidth: "220px",
+                textAlign: "center",
+                boxShadow: "0 2px 5px rgba(0,0,0,0.1)",
+                backgroundColor: "#fff",
+              }}
+            >
+              <img
+                src={product.image}
+                alt={product.title}
+                style={{ height: "150px", objectFit: "contain", marginBottom: "10px" }}
+              />
+              <h4
+                style={{
+                  fontSize: "16px",
+                  height: "48px",
+                  overflow: "hidden",
+                  marginBottom: "8px",
+                }}
+                title={product.title}
+              >
+                {product.title}
+              </h4>
+              <p style={{ color: "#666", marginBottom: "6px", fontStyle: "italic" }}>
+                {product.category.charAt(0).toUpperCase() + product.category.slice(1)}
+              </p>
+              <p style={{ fontWeight: "bold", fontSize: "18px", color: "#2a9d8f" }}>
+                ${product.price.toFixed(2)}
+              </p>
+            </div>
+          ))
+        )}
+      </div>
+    </div>
+  );
+}
+
+export default App;

NDV_Code_by_Chandini_OrderManagement/OrderManagement.java

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+import org.hibernate.*;
+import org.hibernate.cfg.Configuration;
+
+import jakarta.persistence.*;
+
+@Entity
+class Customer {
+    @Id
+    @GeneratedValue
+    private int id;
+    private String name;
+
+    public Customer() {}
+    public Customer(String name) { this.name = name; }
+
+    public int getId() { return id; }
+    public String getName() { return name; }
+    public void setName(String name) { this.name = name; }
+}
+
+public class SimpleOrderApp {
+    public static void main(String[] args) {
+        // Hibernate config
+        Configuration cfg = new Configuration();
+        cfg.setProperty("hibernate.connection.driver_class", "com.mysql.cj.jdbc.Driver");
+        cfg.setProperty("hibernate.connection.url", "jdbc:mysql://localhost:3306/orderdb");
+        cfg.setProperty("hibernate.connection.username", "root");
+        cfg.setProperty("hibernate.connection.password", "your_password"); // <-- Change this
+        cfg.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQLDialect");
+        cfg.setProperty("hibernate.hbm2ddl.auto", "update");
+        cfg.setProperty("hibernate.show_sql", "true");
+
+        cfg.addAnnotatedClass(Customer.class);
+
+        SessionFactory factory = cfg.buildSessionFactory();
+        Session session = factory.openSession();
+        Transaction tx = session.beginTransaction();
+
+        Customer customer = new Customer("Honey");
+        session.save(customer);
+
+        tx.commit();
+        session.close();
+        factory.close();
+
+        System.out.println("✔ Customer saved to DB!");
+    }
+}

NDV_code_by_Chandini_Orderbook/Orderbook.java

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+import org.hibernate.*;
+import org.hibernate.cfg.Configuration;
+
+import jakarta.persistence.*;
+
+@Entity
+class Customer {
+    @Id
+    @GeneratedValue
+    private int id;
+    private String name;
+
+    public Customer() {}
+    public Customer(String name) { this.name = name; }
+
+    public int getId() { return id; }
+    public String getName() { return name; }
+    public void setName(String name) { this.name = name; }
+}
+
+public class SimpleOrderApp {
+    public static void main(String[] args) {
+        // Hibernate config
+        Configuration cfg = new Configuration();
+        cfg.setProperty("hibernate.connection.driver_class", "com.mysql.cj.jdbc.Driver");
+        cfg.setProperty("hibernate.connection.url", "jdbc:mysql://localhost:3306/orderdb");
+        cfg.setProperty("hibernate.connection.username", "root");
+        cfg.setProperty("hibernate.connection.password", "your_password"); // <-- Change this
+        cfg.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQLDialect");
+        cfg.setProperty("hibernate.hbm2ddl.auto", "update");
+        cfg.setProperty("hibernate.show_sql", "true");
+
+        cfg.addAnnotatedClass(Customer.class);
+
+        SessionFactory factory = cfg.buildSessionFactory();
+        Session session = factory.openSession();
+        Transaction tx = session.beginTransaction();
+
+        Customer customer = new Customer("Honey");
+        session.save(customer);
+
+        tx.commit();
+        session.close();
+        factory.close();
+
+        System.out.println("✔ Customer saved to DB!");
+    }
+}

NDV_code_by_Chandini_contactbook.java/contactbook.java

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+import java.sql.*;
+import java.util.Scanner;
+
+public class ContactBookApp {
+    static final String URL = "jdbc:mysql://localhost:3306/contact_book_db";
+    static final String USER = "root"; // Replace if needed
+    static final String PASS = "your_mysql_password"; // Replace with your MySQL password
+    static Scanner sc = new Scanner(System.in);
+
+    public static void main(String[] args) {
+        int choice;
+        do {
+            System.out.println("\n1. Add Contact\n2. View Contacts\n3. Delete Contact\n0. Exit");
+            System.out.print("Enter choice: ");
+            choice = sc.nextInt(); sc.nextLine();
+            switch (choice) {
+                case 1 -> addContact();
+                case 2 -> viewContacts();
+                case 3 -> deleteContact();
+                case 0 -> System.out.println("Goodbye!");
+                default -> System.out.println("Invalid choice.");
+            }
+        } while (choice != 0);
+    }
+
+    static void addContact() {
+        try (Connection conn = DriverManager.getConnection(URL, USER, PASS)) {
+            System.out.print("Enter Name: ");
+            String name = sc.nextLine();
+            System.out.print("Enter Phone: ");
+            String phone = sc.nextLine();
+            System.out.print("Enter Email: ");
+            String email = sc.nextLine();
+
+            String sql = "INSERT INTO contacts (name, phone, email) VALUES (?, ?, ?)";
+            PreparedStatement ps = conn.prepareStatement(sql);
+            ps.setString(1, name);
+            ps.setString(2, phone);
+            ps.setString(3, email);
+            ps.executeUpdate();
+
+            System.out.println("Contact added!");
+        } catch (Exception e) {
+            System.out.println("Error: " + e);
+        }
+    }
+
+    static void viewContacts() {
+        try (Connection conn = DriverManager.getConnection(URL, USER, PASS)) {
+            String sql = "SELECT * FROM contacts";
+            Statement stmt = conn.createStatement();
+            ResultSet rs = stmt.executeQuery(sql);
+            System.out.println("Contacts:");
+            while (rs.next()) {
+                System.out.println("ID: " + rs.getInt("id") +
+                        ", Name: " + rs.getString("name") +
+                        ", Phone: " + rs.getString("phone") +
+                        ", Email: " + rs.getString("email"));
+            }
+        } catch (Exception e) {
+            System.out.println("Error: " + e);
+        }
+    }
+
+    static void deleteContact() {
+        try (Connection conn = DriverManager.getConnection(URL, USER, PASS)) {
+            System.out.print("Enter Contact ID to delete: ");
+            int id = sc.nextInt(); sc.nextLine();
+            String sql = "DELETE FROM contacts WHERE id = ?";
+            PreparedStatement ps = conn.prepareStatement(sql);
+            ps.setInt(1, id);
+            int rows = ps.executeUpdate();
+            if (rows > 0) System.out.println("Contact deleted!");
+            else System.out.println("Contact not found.");
+        } catch (Exception e) {
+            System.out.println("Error: " + e);
+        }
+    }
+}

README.md

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+ Contact Book App (Java + MySQL)
+This is a simple console-based Contact Book application developed in Java using JDBC to connect to a MySQL database.
+
+Features:
+Add Contact: Save a new contact with name, phone, and email.
+
+View Contacts: Display all saved contacts from the database.
+
+Delete Contact: Remove a contact by entering its ID.
+
+🔧 Technologies Used:
+Java
+
+JDBC (Java Database Connectivity)
+
+MySQL