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Questions tagged [conceptual]

Conceptual questions involve programming problems which are not related to program code itself, but with algorithm logic and program architecture.

364 questions
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How to compare a hashSet within a foreach loop iterating through another hashSet Java

I'm running a test to see if the values I've inputed into a file are the same values I generate from my API. So I have actual values which are generated from my API and I have another list of expected values. The problem I have is that I am not able…
mosawi
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Conceptual data model using ternary relationship

I have the following statements to create my conceptual model: EMPLOYEE belongs to one DEPARTMENT; EMPLOYEE can work in many PROJECTs of his DEPARTMENT; PROJECT is managed by only one DEPARTMENT; DEPARTMENT can have many PROJECTs; So 1 EMPLOYEE…
Roni Castro
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1 answer

Revise database design of Inventory business due fluctuation cost

I had some sort of IT backgrounds with less-more economic and management understandings and some common senses. I added some functionality to current web based system which used to control quantities of inventory over fluctuation cost. The business…
Naoki
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Can I store generic arrays in structures?

I am facing a problem with storing arrays in structures, which are further written onto a file. The arrays are square matrices. The arrays and the size n are stored in a structure. This structure is then stored in a file(binary file). The size of…
Sukhmeet Singh
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3 answers

How to implement a matrix class with dynamically allocated elements?

I have a homework assignment asking me to implement a matrix class with that uses dynamic allocation to store its elements. The class should allow the addition and substraction. It needs to free memory that it no longer needs to store elements. My…
johnjhye
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Which executes first Code Behind or View Model

Based on my previous question Accessing variables from XAML and object from ViewModel using Code Behind: How would I know which executes first? Is it the code behind or the ViewModel? I just want to make sure that my code behind executes prior…
JennyJane
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properly designed basic inventory system DEVICE table

My general goal is to have a properly designed basic inventory system. However, I am having trouble finalizing my DEVICE table. DEVICE is used for storing each type of device within my inventory, not a specific device instance. Another table,…
JudosOk
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1 answer

How to pass database data from C# .NET Core backend to Typescript Angular frontend?

I have created an ASP.NET Core web application with an Angular frontend, via the Visual Studio create new project function. I have also created a SQL Server instance. I am able to get data in my C# code from the database into a datatype via a…
user8402764
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Difference between ZeroMQ asynchronous http requests and Messages?

How is using asynchronous HTTP Requests different from using Messages when it comes to sending data in ZeroMQ?
Mostapha Aloui
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Alfresco Repo Side working on Document Upload

I would like to understand how does the Alfresco Repo works whenever any document is uploaded. How exactly the content is stored in file system metadata in DB and indexes in Solr respectively ?
Kalebere Gaurav
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Terse umbrella concept for data validation and standardization?

I want to write some code that handles both data validation (for example, "field X must be alphanumeric") and data standardization (for example, "coerce field X into upper case"). I'd like a rubric for this code that encompasses these two functions…
chaos
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Why syntax error occurs when a void function is checked in IF statement

What will be the output if I write In C++ if(5) will be executed without any problem but not in C# same way will it be able to run. if(func()){} //in C# it doesn't runs Why how does C# treats void and how in Turbo C++ void…
Shantanu Gupta
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4 answers

Javascript fail (this.* misdirected), ?why

When creating a pointer to a function inside an object "this" is not correctly resolved Try this example to get the concept... // this.* fail a = { x : 123, f : function(){ console.log( this.x ) } } a.f() // 123 b = a.f // b points to a.f…
ZEE
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3 answers

Android development with no screen

I have a hobby android app idea that basically just uses Android's sensors and logs them long term for several days (external battery). The sensors needed are in $200 phones, and I can get ones for under $100 if the screen doesnt work. My question…
FrostyFire
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trying to understand the concept for NSNotification DefaultCenter multi threaded

Let me explain, I have a UIViewController in a thread n. [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(myCommandNotification:) name:NetConnection object:nil]; I have an other Class in thread n +1 and i post a…
Alan10977
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