Simple X Answer | Find simple answers to your complex questions

Connect to DB2 in Java – Solved

June 2, 2017June 4, 2017 - by jkala - Leave a Comment

Connect to DB2 in Java – Solved A solved example of how to connect to the db2 database in Java, run a query and retrieve its results. Then traverse through …

JavaScript

Intersection of Two Arrays in JavaScript – Solved

May 17, 2017June 4, 2017 - by jkala - Leave a Comment

Intersection of Two Arrays in JavaScript – Solved As the site name suggests I’m going to keep it simple. If your objective is to take an intersection of two arrays, …

Raspberry Pi

gpio.in – runtimeerror: no access to dev/mem – Solved

March 19, 2017June 4, 2017 - by jkala - Leave a Comment

gpio.in – RuntimeError: no access to dev/mem – Solved Run the following commands:

sudo rpi-update

1 2	sudo rpi-update

to make sure you are using a recent kernel, and


sudo apt-get update
sudo apt-get upgrade

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sudo apt-get update

sudo apt-get upgrade

Add the PI user to …

Raspberry Pi

TypeError: Type str doesn’t support the buffer API – Solved

March 19, 2017March 19, 2017 - by jkala - Leave a Comment

TypeError: Type str doesn’t support the buffer API – Solved If you get this error Type str doesn’t support the buffer API suggests that whatever you’re trying to ouput needs to …

Raspberry Pi

Raspberry Pi No Ethernet Connection – Solved

March 19, 2017June 4, 2017 - by jkala - Leave a Comment

Raspberry pi no Ethernet connection – solved Hey there folks – I spent about an hour to figure out how to connect my raspberry pie to the internet using an …

Linux

Linux bash script to read parameters – SOLVED

February 16, 2017June 4, 2017 - by jkala - Leave a Comment

Linux bash script to read parameters – Solved A simple way to create a bash script which will allow you read in the parameters entered in the terminal and handle …

Xamarin

Performing OCR for Android in Xamarin using Computer Vision API

January 2, 2017June 4, 2017 - by jkala - Leave a Comment

Performing OCR for Android in Xamarin using Computer Vision API Step 1. Obtain an API Key by going to the following page and registering https://www.microsoft.com/cognitive-services/en-us/computer-vision-api for Starters, the free edition …

Linux

Add a user to authorized_keys – Solved

November 21, 2016 - by jkala - Leave a Comment

Add a user to authorized_keys Hey there folks, I ran into a task where I needed to add a user to one the machiens so she could SSH into the …

Promo

An android app that provides answers to your math questions

November 3, 2016November 28, 2016 - by jkala - Leave a Comment

The following app was published not too long ago which allows you to snap a picture of a math problem, and receive a detailed explanation with a solution by real …

Xamarin

Send email with attachment in Xamarin

August 22, 2016August 22, 2016 - by jkala - Leave a Comment

Send email with attachment in Xamarin Here’s the solution to send an email using the MailKit library, and ensure the email gets sent in the DEBUG and RELEASE modes.

public async Task SendMail() {

 var message = new MimeMessage();
 message.From.Add(new MailboxAddress("Pablo", "pablo@gmail.com"));
 message.To.Add(new MailboxAddress("Julio", "julio@hotmail.com"));
 message.Subject = "We keep spending most of our lives living in the gangsta's paradise";

 // create our message text, just like before (except don't set it as the message.Body)
 var body = new TextPart("plain") {
  Text = "Hi there, this is a body of the message."
 };

 MemoryStream myImageStream = convertBMPImageToStream(bmpImage);

 var attachment = new MimePart("image", "jpg") {
  ContentObject = new ContentObject(myImageStream, ContentEncoding.Default),
   ContentDisposition = new ContentDisposition(ContentDisposition.Attachment),
   ContentTransferEncoding = ContentEncoding.Base64,
   FileName = "attachedImage.jpg",
 };

 // now create the multipart/mixed container to hold the message text and the
 // image attachment
 var multipart = new Multipart("mixed");
 multipart.Add(body);
 multipart.Add(attachment);

 message.Body = multipart;

 using(var client = new SmtpClient()) {
  client.Connect("smtp.gmail.com", 587, false);

  // Note: since we don't have an OAuth2 token, disable
  // the XOAUTH2 authentication mechanism.
  client.AuthenticationMechanisms.Remove("XOAUTH2");

  // Note: only needed if the SMTP server requires authentication
  client.Authenticate("gmailUsername", "gmailpassword");

  try {
   await client.SendAsync(message);
  } catch (SmtpCommandException ex) {
   Console.WriteLine("Error sending message: {0}", ex.Message);
   Console.WriteLine("\tStatusCode: {0}", ex.StatusCode);
   switch (ex.ErrorCode) {
    case SmtpErrorCode.RecipientNotAccepted:
     Console.WriteLine("\tRecipient not accepted: {0}", ex.Mailbox);
     break;
    case SmtpErrorCode.SenderNotAccepted:
     Console.WriteLine("\tSender not accepted: {0}", ex.Mailbox);
     break;
    case SmtpErrorCode.MessageNotAccepted:
     Console.WriteLine("\tMessage not accepted.");
     break;
   }
  } catch (SmtpProtocolException ex)
  Console.WriteLine("Protocol error while sending message: {0}", ex.Message);

  client.Disconnect(true);
 }
}

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public async Task SendMail() {

var message = new MimeMessage();

message.From.Add(new MailboxAddress("Pablo", "pablo@gmail.com"));

message.To.Add(new MailboxAddress("Julio", "julio@hotmail.com"));

message.Subject = "We keep spending most of our lives living in the gangsta's paradise";

// create our message text, just like before (except don't set it as the message.Body)

var body = new TextPart("plain") {

Text = "Hi there, this is a body of the message."

};

MemoryStream myImageStream = convertBMPImageToStream(bmpImage);

var attachment = new MimePart("image", "jpg") {

ContentObject = new ContentObject(myImageStream, ContentEncoding.Default),

ContentDisposition = new ContentDisposition(ContentDisposition.Attachment),

ContentTransferEncoding = ContentEncoding.Base64,

FileName = "attachedImage.jpg",

};

// now create the multipart/mixed container to hold the message text and the

// image attachment

var multipart = new Multipart("mixed");

multipart.Add(body);

multipart.Add(attachment);

message.Body = multipart;

using(var client = new SmtpClient()) {

client.Connect("smtp.gmail.com", 587, false);

// Note: since we don't have an OAuth2 token, disable

// the XOAUTH2 authentication mechanism.

client.AuthenticationMechanisms.Remove("XOAUTH2");

// Note: only needed if the SMTP server requires authentication

client.Authenticate("gmailUsername", "gmailpassword");

try {

await client.SendAsync(message);

} catch (SmtpCommandException ex) {

Console.WriteLine("Error sending message: {0}", ex.Message);

Console.WriteLine("\tStatusCode: {0}", ex.StatusCode);

switch (ex.ErrorCode) {

case SmtpErrorCode.RecipientNotAccepted:

Console.WriteLine("\tRecipient not accepted: {0}", ex.Mailbox);

break;

case SmtpErrorCode.SenderNotAccepted:

Console.WriteLine("\tSender not accepted: {0}", ex.Mailbox);

break;

case SmtpErrorCode.MessageNotAccepted:

Console.WriteLine("\tMessage not accepted.");

break;

}

} catch (SmtpProtocolException ex)

Console.WriteLine("Protocol error while sending message: {0}", ex.Message);

client.Disconnect(true);

}

…