### Instruction:
Develop a Java application that scrapes product details (name, price, description) from an e-commerce website and stores the data in an SQLite database.


### Response:

To create a Java application that scrapes product details from an e-commerce website and stores the data in an SQLite database, you can follow these steps:

1. Install required libraries
2. Set up the SQLite database
3. Create a class to represent the Product
4. Scrape the e-commerce website using Jsoup
5. Store the scraped data into the SQLite database

Here's an example implementation of this application:

Step 1: Install required libraries

Add the following dependencies to your `pom.xml` file if you are using Maven:

```xml
<dependencies>
    <dependency>
        <groupId>org.jsoup</groupId>
        <artifactId>jsoup</artifactId>
        <version>1.14.3</version>
    </dependency>
    <dependency>
        <groupId>org.xerial</groupId>
        <artifactId>sqlite-jdbc</artifactId>
        <version>3.36.0.3</version>
    </dependency>
</dependencies>
```

Step 2: Set up the SQLite database

Create a new class called `DatabaseHelper.java` with the following content:

```java
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class DatabaseHelper {

    private static final String DB_NAME = "products.db";
    private static final String CONNECTION_URL = "jdbc:sqlite:" + DB_NAME;

    public static Connection connect() {
        try {
            return DriverManager.getConnection(CONNECTION_URL);
        } catch (SQLException e) {
            System.out.println("Error connecting to the database");
            e.printStackTrace();
            return null;
        }
    }

    public static void setupDatabase() {
        try (Connection connection = connect()) {
            Statement statement = connection.createStatement();
            statement.execute("CREATE TABLE IF NOT EXISTS products (" +
                    "id INTEGER PRIMARY KEY AUTOINCREMENT," +
                    "name TEXT NOT NULL," +
                    "price REAL NOT NULL," +
                    "description TEXT" +
                    ")");
        } catch (SQLException e) {
            System.out.println("Error setting up the database");
            e.printStackTrace();
        }
    }
}
```

Step 3: Create a class to represent the Product

Create a new class called `Product.java` with the following content:

```java
public class Product {

    private String name;
    private double price;
    private String description;

    public Product(String name, double price, String description) {
        this.name = name;
        this.price = price;
        this.description = description;
    }

    // Getters and setters for each field

    @Override
    public String toString() {
        return "Product{" +
                "name='" + name + '\'' +
                ", price=" + price +
                ", description='" + description + '\'' +
                '}';
    }
}
```

Step 4: Scrape the e-commerce website using Jsoup

Create a new class called `Scraper.java` with the following content:

```java
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

public class Scraper {

    public static List<Product> scrapeProducts(String url) {
        List<Product> products = new ArrayList<>();

        try {
            Document document = Jsoup.connect(url).get();
            Elements productElements = document.select(".product"); // Replace with the appropriate CSS selector for your target website

            for (Element productElement : productElements) {
                String name = productElement.select(".product-name").text(); // Replace with the appropriate CSS selector for your target website
                double price = Double.parseDouble(productElement.select(".product-price").text().replace("$", "")); // Replace with the appropriate CSS selector for your target website
                String description = productElement.select(".product-description").text(); // Replace with the appropriate CSS selector for your target website

                products.add(new Product(name, price, description));
            }
        } catch (IOException e) {
            System.out.println("Error scraping the website");
            e.printStackTrace();
        }

        return products;
    }
}
```

Step 5: Store the scraped data into the SQLite database

Create a new class called `Main.java` with the following content:

```java
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.List;

public class Main {

    public static void main(String[] args) {
        DatabaseHelper.setupDatabase();

        List<Product> products = Scraper.scrapeProducts("https://example.com/products"); // Replace with the URL of the e-commerce website you want to scrape

        try (Connection connection = DatabaseHelper.connect()) {
            PreparedStatement preparedStatement = connection.prepareStatement("INSERT INTO products (name, price, description) VALUES (?, ?, ?)");

            for (Product product : products) {
                preparedStatement.setString(1, product.getName());
                preparedStatement.setDouble(2, product.getPrice());
                preparedStatement.setString(3, product.getDescription());

                preparedStatement.executeUpdate();
            }
        } catch (SQLException e) {
            System.out.println("Error inserting products into the database");
            e.printStackTrace();
        }
    }
}
```

Now, when you run the `main()` method in the `Main` class, it will scrape the product details from the specified e-commerce website and store them in an SQLite database. Note that you'll need to replace the example URL and CSS selectors with the ones corresponding to the actual e-commerce website you want to scrape.