1,497 Answered Questions for the topic computer programming

Computer Programming

03/27/19

What are the benefits and drawbacks of OOP?
As far as I can tell, in spite of the countless millions or billions spent on OOP education, languages, and tools, OOP has not improved developer productivity or software reliability, nor has it... more
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Computer Programming Web Design

03/27/19

When should I use anchors and how do I add them to my wix page?
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Computer Programming

03/27/19

Function for creating color wheels?
This is something I've pseudo-solved many times and have never quite found a solution for.The problem is to come up with a way to generate `N` colors, that are as distinguishable as possible where... more
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Computer Programming

03/27/19

How to check if the given string is palindrome?
How to check if the given string is a palindrome? Looking for solutions in any language.
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Computer Programming

03/26/19

What is "Orthogonality"?
What does "orthogonality" mean when talking about programming languages? What are some examples of Orthogonality?
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Computer Programming

03/26/19

Write an Algorithm in Pseudocode
Write an algorithm that, given a sequence of characters, allows you to find the number of words that begin with letter "A"
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Computer Programming

03/26/19

Difference between red-black trees and AVL trees?
Can someone please explain what the main differences between these two data structures are? I've been trying to find a source online that highlights the differences/similarities, but I haven't... more
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Computer Programming

03/26/19

Why is NaN not equal to NaN?
The relevant IEEE standard defines a numeric constant NaN (not a number) and prescribes that NaN should compare as not equal to itself. Why is that? All the languages I'm familiar with implement... more
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Computer Programming

03/26/19

Observer Design Pattern vs "Listeners"?
It seems to me that the Observer design pattern as described in GOF is really the same thing as Listeners found in various toolkits. Is there a difference between the concepts, or are Listeners and... more
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Computer Programming

03/26/19

Private vs Protected - Visibility Good-Practice Concern?
I've been searching and I know the theoretic difference. - **public** - Any class/function may access the method/property. - **protected** - Only this class and any subclasses may access the... more
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Computer Programming

03/19/19

Signed versus Unsigned Integers?
Am I correct to say the difference between a signed and unsigned integer is:1. Unsigned can hold a larger positive value, and no negative value.2. Unsigned uses the leading bit as a part of the... more
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Computer Programming

03/19/19

What is the difference between concurrent programming and parallel programming?
What is the difference between concurrent programming and parallel programing? I asked google but didn't find anything that helped me to understand that difference. Could you give me an example for... more
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Computer Programming Web Design

03/19/19

How do I automatically send emails to my Wix site visitors?
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Computer Programming

03/19/19

What USEFUL bitwise operator code tricks should a developer know about?
I must say I have never had cause to use bitwise operators, but I am sure there are some operations that I have performed that would have been more efficiently done with them. How have "shifting"... more
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Computer Programming

03/19/19

What is composition as it relates to object oriented design?
What is Compositon? I understand inheritance from the point of Person : Mammal : Animal, but I can't really see the definition of Compostion anywhere.. Can somebody fill me in?
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Computer Programming

03/19/19

Print two-dimensional array in spiral order?
How do I print a 5x5 two-dimensional array in spiral order? Is there any formula so that I can print an array of any size in spiral order?
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Computer Programming

03/18/19

What is an invariant?
The word seems to get used in a number of contexts. The best I can figure is that they mean a variable that can't change. Isn't that what constants/finals are for?
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Computer Programming

03/18/19

Is it ever advantageous to use 'goto' in a language that supports loops and functions? If so, why?
I've long been under the impression that `goto` should never be used if possible. While perusing libavcodec (which is written in C) the other day, I noticed multiple uses of it. Is it ever... more
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Computer Programming

03/18/19

When, if ever, is loop unrolling still useful?
I've been trying to optimize some extremely performance-critical code (a quick sort algorithm that's being called millions and millions of times inside a monte carlo simulation) by loop unrolling.... more
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Computer Programming

03/18/19

How to always round up to the next integer?
I am trying to find total pages in building a pager on a website (so i want the result to be an integer. I get a list of records and i want to split into 10 per page (the page count)when i do... more
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Computer Programming

03/18/19

Convert light frequency to RGB?
Does anyone know of any formula for converting a light frequency to an RGB value?
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Computer Programming Web Design

03/18/19

Can I change my background on each page on my wix website?
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Computer Programming Visual Basic Syntax

03/18/19

What is a syntax error in Visual Basic?
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Computer Programming

03/18/19

What is the difference between Type and Class?
What makes a type different from class and vice versa?(In the general language-agnostic sense)
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Computer Programming

03/15/19

Why should recursion be preferred over iteration?
Iteration is more performant than recursion, right? Then why do some people opine that recursion is better (more elegant, in their words) than iteration? I really don't see why some languages like... more
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