conceptual Questions
3
Solved
I have been tasked with creating a flow chart for some client server and start up processes in our organizations software. A lot of our processes run concurrently as they have no impact on one anot...
Froude asked 25/10, 2012 at 18:10
13
Solved
One example is given by one of our trainers when he was explaining difference between CountDownLatch and CyclicBarrier.
CountDownLatch: Suppose a stone can be lifted by 10 people so you will wait ...
Terryterrye asked 14/4, 2012 at 18:30
14
Solved
I don't understand the concept of postfix and prefix increment or decrement. Can anyone give a better explanation?
Phosgenite asked 15/12, 2010 at 0:36
3
Solved
Laravel ships with database migrations for managing CRUD operations regarding the structure of a database, but what is the appropriate/recommended/standardized way to handle migration of actual dat...
Purdah asked 25/2, 2021 at 19:39
3
Solved
I have a class which defines all of the basic parameters for a given screen. From here every screen in the application is a subclass of this. I need every screen (i.e. subclass) to set the value of...
Cellini asked 22/2, 2013 at 2:16
2
Solved
I got asked the other day about "Outlining a general algorithm for solving a maze with n balls, where the goal is to get all the balls to a given position in the maze (the maze has no exit)". The o...
Inestimable asked 15/6, 2016 at 16:8
1
I have a matrix of data with missing values that I am trying to impute, and I am looking at the options for different imputers and checking to see what settings would work best for the biological c...
See asked 24/7, 2019 at 15:5
1
Solved
I would like to understand why sum/min/max functions in R interpret a character string as TRUE when supplied to na.rm, while mean() does not.
My uneducated guess is that as.logical("xyz") returns ...
Argus asked 21/5, 2019 at 23:52
3
So, I had an argument with my professor earlier defending that NULL is not a pointer, but he kept on insisting that it is because there is such a thing as NULL pointer. So, here I am now a little b...
Vandalism asked 4/4, 2019 at 16:16
3
Solved
Stephen Toub blogged that
Both SynchronizationContext and TaskScheduler are abstractions that
represent a “scheduler”, something that you give some work to, and it
determines when and where to run...
Submerse asked 6/3, 2012 at 8:16
4
I am working on a Qt based CAD application and I am trying to figure out the application's architecture. The application is able to load multiple projects with plans, sections, etc, and to show the...
Ammann asked 2/2, 2018 at 12:40
6
Solved
I may be missing something but what is the difference between doing:
public void MyMethod()
{
Task t = Task.Factory.StartNew(DoSomethingThatTakesTime);
t.Wait();
UpdateLabelToSayItsComplete();
...
Certitude asked 1/3, 2012 at 15:55
5
I Learned About 2's Complement and unsigned and signed int. So I Decided to test my knowledge , as far as i know that a negative number is stored in 2's complement way so that addition and subtract...
Heikeheil asked 30/12, 2016 at 16:0
3
Using Chrome Browser DevTools I wanted to add a custom device in the Emulated devices tab.
You can choose several options such as the width and height. And also choose between:
Mobile
Mobile (no ...
Canvas asked 20/11, 2016 at 19:58
1
Solved
Myself a history buff.I love to find out nuances behind naming.As a java developer we have come across servlet(Server side java component),applet(client side java component with gui),portlet(simila...
Felt asked 26/7, 2016 at 9:52
1
In my quest to understand the reasoning to use Java over C++ or vice versa for writing applications, I became stuck on this one point. I watched a video introducing me to Java and they said t...
Movement asked 10/8, 2016 at 22:40
2
Solved
I am reading The Pragmatic Programmer: From Journeyman to Master by Andrew Hunt, David Thomas. When I was reading about a term called orthogonality I was thinking that I am getting it right. I was ...
Galilean asked 11/7, 2012 at 13:3
3
Solved
I understand that PowerShell piping works by taking the output of one cmdlet and passing it to another cmdlet as input. But how does it go about doing this?
Does the first cmdlet finish and then ...
Yetah asked 26/6, 2013 at 15:33
2
Solved
I'm having trouble visualizing how Javascript can be both single-threaded but non-blocking on the client. I've always envisioned something like an assembly line:
At the start of your code executi...
Selene asked 23/7, 2015 at 7:8
1
I am currently trying to understand arrows and FRP, and I came upon a question, which I cannot seem to map to FRP, namely how to model a road network.
I thought I could model a road network as Arr...
Lawgiver asked 21/5, 2015 at 6:27
3
Solved
In Java, the following code returns false on both queries. Why? Wouldn't it be simpler for method references to be singleton? It would certainly make attaching and detaching listeners a lot simpler...
Hepato asked 23/12, 2014 at 8:17
1
I was wondering why the terms Covariance and Contravariance are named like that in programming domain. Usually one hears these terms in Probability theory or Statistics indicating the spread of qua...
Stunsail asked 27/8, 2014 at 14:21
2
Solved
I finished a project in C++. It is a console application, created with CodeBlocks. Although I consider it not so important in the scope of this question: The application manages data about bills an...
Stores asked 2/8, 2014 at 21:36
2
I have read quite a few articles lately which describe SQL and NoSQL from both sides of the divide, such as http://use-the-index-luke.com/blog/2013-04/whats-left-of-nosql. These articles very often...
Analects asked 26/4, 2014 at 8:35
3
Solved
Does anyone have a real world example outside of python's file object implementation of an __enter__ and __exit__ use case? Preferably your own, since what I'm trying to achieve is a better way to ...
Aphoristic asked 20/10, 2013 at 23:39
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