using System;

public class Program

{

    public static void Main()

    {

​

    }

    public static DataSet getProducts(String web_input_field_value){     

        String query = "SELECT * FROM products WHERE category = '"+ web_input_field_value + "'";

​

        Statement statement = connection.createStatement();

​

        ResultSet resultSet = statement.executeQuery(query);

    }

}