OStack Q&A-Knowledge Sharing Community

0 votes

470 views

1 answer

multithreading - Mutli-threading python with Tkinter

I'm drawing little circles on a canvas with these functions : This is the function that will draw the circles : ... me how to run these threads? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

289 views

1 answer

ftpwebrequest - Howto do a simple ftp get file on Android

I can't find an example of a simple FTP access of a file anywhere, and the FTPClient class (which a ... and URLConnection for ftp? Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

119 views

1 answer

jQuery Mobile Dialog on page load

Working on my first jQuery Mobile app. There is a localStorage value that must have a value throughout the ... first page is so troublesome. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

95 views

1 answer

How can I read in a RAW image in MATLAB?

I want to open and read a .raw image in MATLAB. My file can be downloaded here. I have tried the ... do I read this picture correctly? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

541 views

1 answer

php - Trying to access array offset on value of type bool

$query = $pdo -> prepare("SELECT * FROM Users WHERE Username =:Username"); $query->bindParam(':Username', $name); ... thing was working on v7.3 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

453 views

1 answer

ssl - Java SSLHandshakeException: no cipher suites in common

I am trying to apply security to a simple chat application with Java SSLSockets. I have created a self- ... { // Removes thread for exiting client ChatServerThread toTerminate =...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

730 views

1 answer

oop - C# : Converting Base Class to Child Class

I have a class, NetworkClient as a base class : using System.IO; using System.Net.Sockets; using System. ... be converted to Skyfilter Client? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

539 views

1 answer

css - How do I remove blue "selected" outline on buttons?

I have some buttons using <button>, which when clicked get a blue selected color! Is there a way to remove this feature? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

463 views

1 answer

c# - SqlConnection.Close() inside using statement

I'm using this code: public void InsertMember(Member member) { string INSERT = "INSERT INTO Members (Name, Surname, ... it first? If yes, why? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

197 views

1 answer

ios - Why Is UITextField.text An Optional?

It starts out as an empty string instead of nil. Even when it is explicitly set to nil it remains an empty string. ... // prints "Optional("")" See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

533 views

1 answer

c# - What is the default behavior of Equals Method?

Let A be a class with some members as x, y, z: Class A { int x; int y; String z; ... } A ... of members or does it check for reference equality? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

667 views

1 answer

rxjs - How to get an observable to return data immediately and every 5 seconds thereafter

I want to create an observable that returns data from a webapi. I'd like it to return the data immediately, and poll ... return result; }); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

333 views

1 answer

javascript - Jquery execute onchange event on onload

I have a function that on change event run the post actions. $("select#marca").change(function(){ var marca = $( ... a good way to do this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

696 views

1 answer

c# - The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine.

every thing work fine locally but this error occurs when I publish it: The 'Microsoft.ACE.OLEDB.12.0' ... > any suggestions for this problem See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

522 views

1 answer

c# - Custom Caret for WinForms TextBox

I'm developing a custom HyperTerminal like application in a WinForms .Net 2.0 application. I have a multiline ... Windows function to do it. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

263 views

1 answer

php - Is there any sort of "pre login" event or similar?

I need to run some code prior to checking if a user's credentials are correct. Currently I'm achieving this ... dispatch a custom event myself? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

360 views

1 answer

python - pygame installation: sdl-config command not found

I used ./configure --prefix=$HOME make make install to install sdl2, after which I tried to install pygame by ... version of SDL is installed. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

377 views

1 answer

javascript - Accessing elements in the shadow DOM

Is it possible to find elements inside the Shadow DOM with python-selenium? Example use case: I have this input with ... ": <input type="date"> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

530 views

1 answer

java - Why am I getting "must be caught or declared to be thrown" on my program?

I have been working on this program for quite sometime and my brain is fried. I could use some help from someone ... ^ What am I doing wrong? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

341 views

1 answer

overloading method priority in java

I know that this problem discussed many times but I don't understand anyway. Research this code: public class Main { ... I see int ... why? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

260 views

1 answer

How to generate unique DICOM UID?

I am working on DICOM gated (PET) data. I would like to artificially create a DICOM image series which ... how these values are written? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

488 views

1 answer

apache spark - ALS model - how to generate full_u * v^t * v?

I'm trying to figure out how an ALS model can predict values for new users in between it being updated by a batch ... to full_u * v^t * v See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

159 views

1 answer

c++ - Member fields, order of construction

In C++, when doing something like what you see below, is the order of construction guaranteed? Logger::Logger() : ... kFilePath_) { // ... } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

308 views

1 answer

java - How to open a command terminal in Linux?

I want to open the terminal (command prompt) on a Linux machine using Java code. I know how to open command ... Process pr = rt.exec(command); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

303 views

1 answer

javascript - How do i take picture from client side(html) and save it to server side(Python)

I'm new to python i did one application using python in that i want to capture Images from my webcam using html and ... /script> </body> </html> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

329 views

1 answer

HttpWebRequest and forms authentication in C#

I am a systems guy and currently doing a part time web development project so am pretty new to it. I am ... way to access a authenticated page. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

163 views

1 answer

c++ - Somehow register my classes in a list

I would like to be able to register my classes within a std::map or a vector, don't think about duplicates ... was thinking to create somehow... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

289 views

1 answer

java - Image Orientation - Android

I have been struggling with this bug on and off for the last month or so. Everytime that I think I have ... proper image path for the file. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Recent questions

Just Browsing Browsing

Most popular tags