1,486 Answered Questions for the topic computer programming

Computer Programming Computer Informationtechnology

07/28/19

Need help with this terminology

i need help comparing and explaining: Artificial Intelligence and Expert System EDSAC and EDVAC System Programmer and Application Programmer Information Technology and Information System Transistor... more
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Computer Programming Definition Language Agnostic Idempotent

07/27/19

What is an idempotent operation?
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Computer Programming Math Datetime Language Agnostic

07/25/19

Determine Whether Two Date Ranges Overlap?
Given two date ranges, what is the simplest or most efficient way to determine whether the two date ranges overlap?As an example, suppose we have ranges denoted by DateTime variables `StartDate1`... more
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Computer Programming Cubes Algorithm Theory

07/25/19

Anyone know anything about OLAP Internals?
I know a bit about database internals. I've actually implemented a small, simple relational database engine before, using ISAM structures on disk and BTree indexes and all that sort of thing. It... more
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07/24/19

What is the difference between concurrency and parallelism?
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Computer Programming Theory Cloning .net

07/24/19

Why is cloning (in .NET) so difficult?
In the past I had the need to clone objects, only to find that they don't implement a <code>Clone()</code> method, forcing me to do it by hand (create a new instance and copy all... more
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Computer Programming Computer Science Programming

07/22/19

C++ program use of getchar and putchar function
What is difference between these two programs1 )#include<iostream.h>#include<stdlib.h> int main(){ system("cls"); char ch ; do { cout<<"enter a character :"; ch=... more
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Computer Programming Algorithm Theory Directed Graph

07/21/19

How do I check if a directed graph is acyclic?
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Computer Programming Algorithm Theory Language Agnostic

07/21/19

What is an NP-complete in computer science?
What is an NP-complete problem? Why is it such an important topic in computer science?
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Computer Programming Theory Mvp Architectural Patterns

07/21/19

Does Presenter in Model-View-Presenter create views?
How are Views created in MVP? Does the Presenter always create them (in addition to View in case of subviews)? Or is it a separate third-party component or App or something that creates them?
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Computer Programming Theory P2p Dht

07/21/19

Simple basic explanation of a Distributed Hash Table (DHT)?
Could any one give an explanation on how a DHT works?
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Computer Programming Copy Language Agnostic Deep Copy

07/21/19

What is the difference between a deep copy and a shallow copy?
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Computer Programming Database Theory Storage

07/20/19

Storing Images in DB - Yea or Nay?
So I'm using an app that stores images heavily in the DB. What's your outlook on this? I'm more of a type to store the location in the filesystem, than store it directly in the DB.What do you think... more
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Computer Programming C# Theory Inheritance

07/19/19

Partially Overriding a Virtual Auto-Property in a Child Class?
Time for a theoretical question I just ran across.The following code is valid and compiles: public class Parent { public virtual object TestProperty { get; set; } } public class... more
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Computer Programming Oop Language Agnostic Interface

07/19/19

What does it mean to "program to an interface"?
I have seen this mentioned a few times and I am not clear on what it means. When and why would you do this? I know what interfaces do, but the fact I am not clear on this makes me think I am... more
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Computer Programming Algorithm Theory Complexity Theory

07/19/19

Explaining computational complexity theory?
Assuming some background in mathematics, how would you give a general overview of computational complexity theory to the naive? I am looking for an explanation of the P = NP question. What is P? ... more
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Computer Programming Theory Regex

07/18/19

How a RegEx engine works?
In learning Regular Expressions it had me wondering how the underlying engine works. Probably more specifically, I'd like to know more about how it evalutates, prioritizies and parses the... more
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Computer Programming Theory Definition Side Effects

07/18/19

What is the origin of "launch the missiles"?
In the context of functional programming, a typical example of a side effect is "launch the missiles". Where does that expression come from historically?
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Computer Programming Theory Fractals

07/18/19

How to program a fractal?
I do not have any experience with programming fractals. Of course I've seen the famous Mandelbrot images and such.Can you provide me with simple algorithms for fractals? Programming language... more
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Computer Programming Theory Complexity Theory Big O

07/18/19

Are there any O(1/n) algorithms?
Are there any O(1/n) algorithms?Or anything else which is less than O(1)?
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Computer Programming Theory Haskell Functor

07/18/19

What does it mean to compose two Functors?
Exercise 5 of the Haskell Typeclassopedia Section 3.2 asks for a proof or counterexample on the statement: *The composition of two Functors is also a Functor.* I thought at first that this was... more
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Computer Programming Computer Engineering Logic Design

07/17/19

What are the three basic logic gates?
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Computer Programming Theory Rest

07/17/19

Why use two step approach to deleting multiple items with REST?
We all know the 'standard' way of deleting a single item via REST is to send a single DELETE request to a URI `example.com/Items/666`. Grand, let's move on to deleting many at once. As we do not... more
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Computer Programming Computer Engineering Logic Design

07/16/19

What is VLSI logic design?
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Computer Programming C# Mvc

07/14/19

What is Entity Framework in MVC?
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