Author: Tim the

Hello guys am trying to implement Info Cards using the IInfoCard and IInfoCardFactory and IInfocards interfaces. If you know how to complete the methods of these interfaces to make a program show the forms for the respective categories, then you might just be the guy to help me. I have the interface code as below.

using System;
using System.Windows.Forms;

public interface IInfoCard
{
    string Name { get; set; }
    string Category { get; }
    string GetDataAsString();
    void DisplayData(Panel displayPanel);
    void CloseDisplay();
    bool EditData();
}

and then the interface for IInfoCardFactory

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

public interface IInfoCardFactory
{
    IInfoCard CreateNewInfoCard(string category);
    IInfoCard CreateInfoCard(string initialDetails);
    string[] CategoriesSupported { get; }
    string GetDescription(string category);
}

How do I complete the methods in the class below to make them create the needed info cards and save data to a file

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;

namespace Assignment
{
    internal class CreditCardInfo : IInfoCardFactory,IInfoCard
    {
        private string[] categories = new string[] { "Credit Card" };
        private string name;

        public string[] CategoriesSupported
        {
            get { return categories; }
            set { categories = value; } 

        }

        public string Name { get
            {
                return this.name;   
            } 
            set { this.name = value; }  
        }

        public string Category
        {
            get
            {
                return this.Name;   
            }
            set
            {
                this.Name = value;
            }
        }

        public void CloseDisplay()
        {

            return;
        }

        public IInfoCard CreateInfoCard(string initialDetails)
        {
            string[] stringToSplit = initialDetails.Split(new char[] { '|' });
            string category = stringToSplit[0];
            string description = stringToSplit[1];
            CreditCardInfo info = new CreditCardInfo();
            info.CategoriesSupported=categories;
            return  info;
        }

        public IInfoCard CreateNewInfoCard(string category)
        {
            CreditCardInfo info= new CreditCardInfo();
            info.Category = category;
            return info;
        }

        public void DisplayData(Panel displayPanel)
        {
            //get the string[] categories and display
            string text = this.GetDataAsString();
            string[] info=text.Split(new char[] { '|' });   
            CreditCardDetails form=new CreditCardDetails();
            for(int i=0;i<form.Controls.Count;i++)
            {
                if (form.Controls[i].Name == "label7")
                {
                    form.Controls[i].Text = info[0];
                }
            }
            form.Show();    

        }
        public bool EditData()
        {
            new CreditCardForm().ShowDialog();
            return true;
        }

        public string GetDataAsString()
        {
            string data = this.Name;
            if(categories.Length > 0)
            {
                data+=categories[0].ToString();
            }
            return data;
        }

        public string GetDescription(string category)
        {
            if (category == "Credit Card")
                return "Save personal info about your credit card";
            else
                return "";


        }
    }
}

Hello guys, am trying to access the windows in-built adapter from C# library known as Bluetooth LE (Low Energy). I have installed the nuget package and when I try to run my code, I get the error that
Unhandled exception. System.ArgumentException: [Plugin.BluetoothLE] No platform plugin found. Did you install the nuget package in your app project as well?. I have tried looking online to see if there is a GATTServer instance that needs to be started but did not succeed. Please help me access the adapter correctly without this exception being thrown. Here is the C# code am trying to use

public class BTClient
    {
        //define the adapter
        static IAdapter adapter;
        //declare  variable to hold the UUID of a device
        string UUID;
        public BTClient()
        {
            //assign the adapter on constructor exit
            //this adapter allows usage across various platforms
            adapter = CrossBleAdapter.Current;
        }
        /// <summary>
        /// the method below is for discovering bluetooth devices
        /// nearby
        /// </summary>
        /// <returns></returns>
      [DllExport("devices", CallingConvention = CallingConvention.Cdecl),ComVisible(true)]
        public static List<Plugin.BluetoothLE.IDevice> DiscoverDevices()
        {
            IGattServer server = (IGattServer)CrossBleAdapter.Current.CreateGattServer();
            server.CreateService(new Guid(), true);
             var devices = new List<Plugin.BluetoothLE.IDevice>();
            var scanner = CrossBleAdapter.Current.Scan().Subscribe(scanResult =>
             {
                 devices.Add(scanResult.Device);
             });
            return devices;
        }
}

class Solution{
   static void Main(){
            List<IDevice> devices = new List<IDevice>();
            devices = BTClient.DiscoverDevices();
            foreach(var device in devices){
             Console.WriteLine(device.Name);
            }
   }


}

Am trying to implement face detection using the PCA algorithm in C#,I have a button on my windows forms that is supposed to intitiate the learning process once it is clicked. It should use the images in a folder called training to compute the eigen values and eigen vectors so that it would be able to identify a similar image from the test folder. I have loaded all the 200 images in the training folder into an array list and now my problem is converting this collection of images to a one dimension vector so that i can be able to compute the co-variance matrix and eigen values for it. My code is listed below, if there is any way my code can be improved then your corrections are welcome

namespace PCA
{
    public partial class Form1 : Form
    {
        //the mapack library has been used to create new instances of the matrices
        //hold the width and height of an image in a variable
        static int height = 112;
        static int width = 92;
        //store the number of train images in a variable
        static int train_images = 200;
        //store the number of eigen values to keep in a variable
        static int eigen_values = 50;
        //initialize the matrix data
        PCALib.Matrix matrix_data = new PCALib.Matrix(train_images, width * height);
        //initialize the Target matrix data
        PCALib.Matrix T = new PCALib.Matrix(train_images,eigen_values);
        //initialize the mean of the images
        int image_mean = 0;
        //initialize the image array 
        List<Image> training = new List<Image>();
        //the path to the images
        static string path = "C:/Users/TimothyFarCry5/Documents/visual studio 2015/Projects/PCA/PCA/training";
        public Form1()
        {
            InitializeComponent();
        }
        //the method below starts the training process
        private void button1_Click(object sender, EventArgs e)
        {
            /*read all the images in the training folder into an array
            in this case the images are already in gray scale so we do not need to convert
            */
            var files = Directory.GetFiles(path);
            foreach(string r in files)
            {
                if(Regex.IsMatch(r, @"\.jpg$|\.png$|\.gif$"))
                {
                    training.Add(Image.FromFile(r));
                }
            }
            //convert the list of images to a one dimension vector

Am working on a decipher algorithm that is supposed to take a string input of en english sentence flipped backwards and contains numbers, spaces and delimiters.
I got code that removes numbers and special characters but also removes spaces, Can you help me tell this code to not bully the spaces and just leave them in my string, Thank You.

using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;

public class Program
{
    static List<string> mywords=new List<string>();
    public static void Main()
    {
        string inp=Console.ReadLine();
        string answer=Regex.Replace(inp,"[^a-zA-Z]", "");
        string replacement=reverse(answer);
        Console.WriteLine(replacement);
    }
    private static string reverse(string b){
     string reverse="";int Length=0;
          Length = b.Length - 1;  
            while(Length>=0)  
            {  
                reverse = reverse + b[Length];  
                Length--;  
            }  
        return reverse;
    }
}

i have a script in clojure that can read a string of integers separated by commas from a file..the scrip is succesful and reads the line from the file as astring,all i want is some clojure loop to scan the string for integers and add to an integer array
here is the code

(ns Files.myfile)
(defn hello-world []
  (println "Hello World"))
 (hello-world)
(def s (slurp "integers.txt"))
  (println s)
(s)

##integers.txt contains random integers separated by commas

I have an array in python that has letters as strings and a comma as a string also. I have managed to find code that finds all the letters that come before that comma letter, there are other comma letters and i would like to iterate to list every letter that comes before the commas in the array here is what i got so far

##THE ARRAY IS THIS ONE
myarray=['G', 'o', 'T', ',', 'I', 't', 'B', ',', 'M', 'N', 'R', ',', 'K', 'F', 'P', ',', 'M', 'F', 'I', 'H', ',', 'A', 'H', ',']
temp = myarray.index(",")
res = myarray[:temp]
print(res)

##tHE CODE ABOVE outputs ['G','o','T'], is there a way in which i can iterate through all elements in 
the array listing every letter that comes before the commas