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    How can I become very good at Software Architecture/Design? Ask Programming

    December 01, 2018

    How can I become very good at Software Architecture/Design? Ask Programming

    How can I become very good at Software Architecture/Design?

    Posted: 01 Dec 2018 12:21 PM PST

    I am an experienced software engineer and I know object oriented design and design patterns. However I would like to master the art of making easy to extend and easy to reuse applications.

    P.S. Get a hobby project is not an acceptable answer. I have seen that as the default answer to these types of threads.

    submitted by /u/acertenay
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    What is the best coding site to take your skills from beginning to advanced?

    Posted: 01 Dec 2018 05:19 AM PST

    How to compile Gradle App in Visual Studio Code?

    Posted: 01 Dec 2018 06:59 PM PST

    I bought a Beacon emitting device. I wanted to learn how to interact with it with an open sourced app. I have cloned the repo into VSCODE and followed the steps mentioned in the Readme file. However, I do not know how to perform the final step to compile the app.

    submitted by /u/sahilgreen
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    Is Spark hard to learn?

    Posted: 01 Dec 2018 12:44 PM PST

    Where should I begin if I want to learn how to compute on a GPU with OpenCL?

    Posted: 01 Dec 2018 06:33 PM PST

    I asked on the learn programming sub but nobody even responded. So I figured I'd take a stab here.

    I'd like to just get a pretty good feeling for it so I can start learning how to run applicable calculations faster than I'm able to with a regular CPU. After all isn't that why everyone does it?

    Preferably reference material would be for the C++ bindings but I won't complain about normal C either.

    I mean books, YouTube series, whatever you got. I searched for it a bit today but it doesn't seem that there's as much good material on this as there is for more standard concepts.

    submitted by /u/ProceduralMania
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    Need help with board game move validation not working. Java.

    Posted: 01 Dec 2018 02:08 PM PST

    I'm making a Reversi board game in Java. In Reversi you can place a piece if only next to a piece of the opposite colour and if the row or column has a same colour piece at the end. My method works for the former but not for the latter. For example, type into the console 6,4 to place a white piece. This is fine. Then type 6,3. The black piece is placed despite there not being another black piece on the row or column. The method responsible for this is endPieceCheck(). I've been stuck on this problem for a long time. What is the problem? Thanks in advance.

    Link to code: https://github.com/AlbanMarku/Reversi

    submitted by /u/albanshqiptar
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    Do I need written permissions to teach people any coding language like HTML and CSS online?

    Posted: 01 Dec 2018 05:51 PM PST

    Graph Partitioning k-way

    Posted: 01 Dec 2018 05:32 PM PST

    I was learning about NP problems and ran into k-way graph partitioning. Basically we are trying to make sets of max size n while trying to reduce the number of edges deleted from the partitioning. How would graph partitioning work if you didn't want certain nodes together in the same partition?

    submitted by /u/jasonlolwut
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    I'm learning Java in school (as a very early beginner) and I'm focusing a lot on Python (starting to get into the intermediate skill area). Is it a good choice to switch my focus to Kotlin soon?

    Posted: 01 Dec 2018 04:54 PM PST

    Python is a relatively easy programming language, but it seems to lack many features, such as low-level programming. I currently use it for some of my projects, but I've heard many good things about Kotlin. As someone who is now learning Java, it seems that Kotlin might be worth focusing on and possibly setting as my new primary language.

    My question isn't whether I should learn it or not (I will either way), I'm just wondering if it's a good idea to switch to it for good. From what I've read, it's essentially an improved version of Java, with many features that provide simplicity and readability (which are also famous features of Python). I have had zero actual experience with it though. Is it something I should invest much of my time into or am I better off staying with Python or learning a different language eventually?

    submitted by /u/ViAik
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    Mapping ERD From UML

    Posted: 01 Dec 2018 04:08 PM PST

    I have made a UML diagram that describes my classes and their relationships with one another.. This will help me make my classes when I program.. However, I also need to make an ERD in order to set up a database.. Is there a set of rules on how to convert/map UMLs into ERDs? I looked this up and couldn't find anything good.. Thanks..

    submitted by /u/Pothead20
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    What did you use to make your business cards? LaTex?

    Posted: 01 Dec 2018 12:07 PM PST

    I do not have photoshopped downloaded and am fiddling with the idea of using this as an opportunity to dip my toes int LaTex for the first time. I have been putting learning LaTex off for a while now.

    Is there a better DYI approach to generating a business card pdf? What did you use?

    submitted by /u/but_how_do_i_go_fast
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    I am currently working as a .NET programmer. How can I start learning data science?

    Posted: 01 Dec 2018 11:45 AM PST

    Modifying Frameworks

    Posted: 01 Dec 2018 03:28 PM PST

    I'm looking into learning more about frameworks. More specifically I'm looking into code reusability and code reuse in regards to frameworks. I'm trying to find the easiest framework to modify. Preferably one that can be used with C# but another language would be fine as well.

    submitted by /u/SoftwareSystems
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    Is it bad practice to have a git repository with multiple root commits?

    Posted: 01 Dec 2018 07:07 AM PST

    I was wondering why this isn't an issue or question that comes up more often.

    Imagine you have a long running bigger project. You want to start experimenting with a new module that could be implemented independently of the main project and then merged eventually.

    I would be tempted to start a completely empty project and repo to quickly start prototyping. Once the module is ready to be added to the main project, the most obvious solution to me seems to be to merge it and keep the history of two unrelated branches. Maybe I've just not come across the right project yet, but I don't see this happening a lot.

    Is this because it's bad practice, or because truly big and independent modules would be added as a dependency or submodule and smaller modules would simply be started on a branch?

    submitted by /u/PM_ME_A_STEAM_GIFT
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    Print Class Vector in Map

    Posted: 01 Dec 2018 12:43 PM PST

    I have an STL map that maps a student ID to their deliverables in a vector.

    typedef std::vector<Deliverables> MyDeliverables; typedef std::map<int, MyDeliverables> MyMap; Deliverables del("Project", 12, 12, 2017); MyMap map; map.insert(MyMap::value_type(1, MyDeliverables()));

    I would like to search based on the student's ID. The issue I have is this: search->second.print();

    Error "std::vector<Deliverables, std::allocator<Deliverables>>" has no member "print"

    I would like to call the print function in the Deliverables class to output the deliverables for that student. 

     auto search = map.find(1); if (search != map.end()) { std::cout << "Found Student ID: " << search->first << '\n' << search->second.print(); } else { std::cout << "Not found\n"; }

    How would I go about doing that? Thank you.

    submitted by /u/draconian_sr
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    how to do meta character expression in javascript

    Posted: 01 Dec 2018 12:00 PM PST

    hi,

    how do I write metacharacterexpression for :

    1) to only accept alpha characters in a name text field. no numbers or symbols allowed either.

    2) In another text field how to only have numbers, no symbols or alpha characters

    thx for help

    submitted by /u/weblady07
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    Custom Google Maps base map

    Posted: 01 Dec 2018 04:27 AM PST

    I want to create a custom Google Maps map but not just the styling, the actual map. The map in question is the Gta V. I have no idea how to change the base map and the extension of the file needed. I also can't find any tutorial besides the styling ones.

    ​

    An example of what I want to do is this: http://gta-5-map.com/

    submitted by /u/tiagovit
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    Trying to build a blocker for 'sponsord messages' in youtube videos.

    Posted: 01 Dec 2018 11:20 AM PST

    Well title says what i am trying to do. Right now i use 'youtube-dl' to download the subtitles and then scan the file for the word 'sponsored'.

    But i am not sure how to do the next step. A firefox plugin that tell the video player to skip 15sek if it detects the word "sponsored" in the subtitles?

    submitted by /u/unix_watchdoge
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    [ JAVA ] Most efficient way to save an arraylist of titles

    Posted: 01 Dec 2018 11:19 AM PST

    Hi guys,

    I'm looking for some technique to save my ArrayList in java. I have to find some titles as fast as possible, I can save the ArrayList in a Text File but I would know if there's some faster technique.

    Can I save the arraylist in a better way or can I find a way to find the title in the rescued booklet in an extremely fast way?

    ​

    Thanks for yours replies.

    submitted by /u/DrakeAusir
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    Insert nodes in binary tree by level

    Posted: 01 Dec 2018 10:43 AM PST

    I have an input of numbers which are the nodes of a binary tree inserted from left to right for example : 5 1 6 3 4 7 means that the root is 5 , on the next level are 1 6 and then on the next 3 4 7.When we insert a node if it already exists in the tree , it has to be put in the right subtree . What will be the fastest way to construct such a tree?

    submitted by /u/GroundbreakingMajor4
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    Best (preferrably free) software for listing product updates and accepting feature requests?

    Posted: 01 Dec 2018 09:28 AM PST

    I'm a freelance developer and until recently I've just listed on a web page for my clients what's new, what's coming, with a form where they can add feature requests (well, their clients), etc. I'm wondering what you guys use to do this? Anything stick out, or do you just manually manage this?

    ​

    Thanks

    submitted by /u/bnimbla
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    Reading/formatting data from text in java

    Posted: 01 Dec 2018 08:55 AM PST

    My program only reads the first line of the test in my file. How do i make sure it reads the rest of the 25 lines without any errors in the specific format?!???!???!!?!???

    Here is the code:

    import java.util.Scanner; import java.io.File; import java.io.FileReader; import java.io.FileNotFoundException; import java.io.IOException; public class assignment2 {

    public static void main(String[] args) {

    String [] splitArray = new String[4]; String line = ""; String hometeam; int homescore; String awayteam; int awayscore;

    Scanner keyboard = new Scanner (System.in); // Allows user to enter the name of text file that the data is stored in System.out.println("This program will try to attempt reading data from a text file "); System.out.print("Enter the file name: "); String filename = keyboard.nextLine();

    Scanner fileReader = null;

    try { File Fileobject = new File (filename); fileReader = new Scanner (Fileobject);

    System.out.println("\nHome team Score Away team Score"); System.out.println("========= ===== ========= =====");

    while(fileReader.hasNext()) { // Contains football scores and teams line = fileReader.nextLine();// Read a line of data from text file

    splitArray = line.split(":"); // check to make sure there are 4 parts in each line if(splitArray.length == 4) { // remove spaces splitArray[0] = splitArray[0].trim(); splitArray[1] = splitArray[1].trim(); splitArray[2] = splitArray[2].trim(); splitArray[3] = splitArray[3].trim(); // Extract each item into an appropriate // variable } fileReader.close();

    try { hometeam = splitArray[0]; awayteam = splitArray[1]; homescore = Integer.parseInt(splitArray[2]); awayscore = Integer.parseInt(splitArray[3]);

    // Output item System.out.println(hometeam + " " + homescore + " " + awayteam + " " + awayscore);

    }

    catch(NumberFormatException e) { System.out.println("Error: numbers cannot be converted"); }

    } }// end of try block catch (FileNotFoundException e) { System.out.println("Error - File does not exist"); } } }

    submitted by /u/anony313
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    C: what is the result of assigning a static array in struct to NULL?

    Posted: 01 Dec 2018 08:53 AM PST

    Hi all! Recently I've started to wonder what would happen in the following situation:

    ​

    Let's suppose we have structure with some static array field (C-string, for example):

    typedef struct {

    char code [CODE_LENGTH + 1];

    } stuff_t;

    Now let's suppose, that in the programm we make:

    stuff_t item;

    item.code = NULL;

    If we had char *, this assign would lead to just setting a pointer to NULL, but we have statically allocated buffer actually. code has a pointer type, as it does in C. But if I understand correctly, it should point to this statically allocated buffer inside the structure. So what would be the result? Also interested to know the result of assinging to the static array in a local var (not a structure). Thank you!

    submitted by /u/kamalist
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    How to find a job after working in a company with shitty developers and no devops?

    Posted: 01 Dec 2018 02:10 AM PST

    I am a developer, writing for .NET, Node.js, Vue.js.

    I've been at this company for 2.5 years and it's my first tech job.

    The company has 8 developers and no idea about things like CI/CD, devops, Agile/Scrum, no project management or anything like that. We've never had a "sprint" or a "standup meeting" or anything like that.

    I am definitely the No. 1 star in this company and my level is higher than that of other developers here, but generally on the market I'm probably totally worthless or a junior at best.

    I went to a couple of interviews and totally bombed them when I couldn't answer questions like "when you are planning your sprints, how do you determine the complexity of a task" and "what is a deadlock".

    What advice would you give to to someone who wants to find a job in a real software company, one that is aware of modern development practices?

    submitted by /u/remember_that_girl
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