I was trying to design a chess game in Java. I have just started learning design patterns and am not sure if my approach here is right. Could you please suggest ways to better this design ? Below is how the code looks like : public enum SquareState { OCCUPIED, EMPTY } public en...

I'm working on developing a small Ruby program to generate random data for a Neo4J database, including people, addresses, phone numbers, etc. I'm a total beginner to Ruby, so I wanted to post my progress so far here to get it reviewed. I've just completed the "people" generating functionality. ...

I would be very grateful to get some thoughts on this toy-implementation of a trie that I wrote to practice my C++. Some questions I have: Is my create member function idiomatic? What's the standard way avoid duplicated copy in the copy-constructor and assignment operator? Is there a way that ...

I've written a simple python web scraper that parses text from an html table and stores the scraped data in List of dictionaries. The code works and doesn't seem to have any glaring issues performance-wise, but I only used the bare bones modules of lxml and requests. This is more of a conceptual ...

I have a question that is similar in spirit to this previously asked question. Nonetheless, I can't seem to figure out a suitable solution. Input: I have CSV data that looks like id,prescriber_last_name,prescriber_first_name,drug_name,drug_cost 1000000001,Smith,James,AMBIEN,100 1000000002,Ga...

In my scenario I have list of object in C# code and need to be converted into JavaScript object. But there are certain condition, where the value of the object might be dynamic based on certain key. I have a following method which will return string as JavaScript Object. public string ItemToJso...

I have an approach that seems to work though I feel like I must be misusing something to achieve it. I am implementing a keyword matching algorithm to a Java 8 IntStream. The goal is to walk over a stream of char values (created by calling .chars() on an input string called sentence). If a key...

why websites still function when HTML validator is giving results that there are numerous mistakes in coding.like meta data , attributes , non declaration of char types.

Engineering calculator to support trigonometric functions with basic arithmetic functions in c language only Maximum decrease the code size please sir Thanq sir

Another exercise in Scala in which the goal is to find the target position as fast as possible. The initial input provides the grid size and the initial position. Each turn, this code provide a new position using println and the direction to the target is given back as a string ("UR" up-right, "D...

how can i read .csv file and save selected column in database. I am having a .csv file like this A, B, C, D 33, 32, 36, 33 67, 34, 37 ,33 So i need to save column B And C Value in new table in database after i compare with the existing table in database

I did some looking around and found some more topics on how to use the $stmt->bind_param function inside another function or class what means the reference variables have to be sort of passed on. With the information, I obtained I was able to create a class that allows a mysqli prepared statement...

I have been tasked to write a Java algorithm which solves a given maze as a file. The program some what works as intended, however the algorithm simply fails when there are rectangle shapes mazes passed into the application. I simply could not find the source of the problem, can you please help m...

I'm currently working through the google FooBar challenge, and I'm on the third level, in which I have to find the distance between the top left and bottom right points on a grid. The grid is filled by ones and zeros, with zeros representing crossable spaces and ones representing non-crossable sp...

Question might be more appropriate in StackOverflow, however I'd also like a review. I'd like to make my code inline as I feel like this could be possible, I'm just not sure how. int highestWeightOfParcel = 0; if (collo.WeightGrammes.HasValue) { if (collo.WeightGrammes > highestWeightOfPar...

Hey I'm a student currently self learning python. And I created something simple which I wanted to try out. And it works. The goal is to create two points(one on the left and one on the right) and connect them on a 5x5 grid. But I'd like to know if there's a better, shorter, and faster way of wri...

I have three modules here models.py, functionals.py, and adjustment.py. These three may be used to perform analysis of Twitter data through tweepy objects. The Tweets class is a simple one which takes 'tweet' objects and take it as a 'list', which is necessary as an argument of Authors class. T...

I need to create test dataframe of lat/lon points. I make it with scalanlp and it looks suitable for me. Next stage is creating spark dataframe from generated points. It looks clumsy for me. The following is the code to review: object TestDataFrame { def make(spark: SparkSession, config: Confi...

I write a glypicon as a link to delete a comment: <a class="delCommentLink" href="{% url 'article:comment_delete' comment.id %}"> <span id="{{ comment.id }}" class="glyphicon glyphicon-trash" aria-hidden="true">delete</span> </a> I send the request using Ajax. retrieve the comment_url ...

I have a python code and I want someone to help me in modifying it to give slightly different plot. I will first describe what the original code does. The code is given a "central" pixel value (called 'y_peak' and 'x_peak' in the code) it draws a line of length 'cutLen' through the central pixe...

I'm currently improving my C skills and therefore implemented a thread-safe and lock-free queue. The algorithm is from chapter 10.5 of the book "The Art of Multiprocessor Programming" by Maurice Herlihy and Nir Shavit which is a great book by the way. I would like to receive feedback on my gener...

So today I challenged myself and made my first dice rolling game. It took a little bit but I think is worked out relatively good ( short, clean(?) code) I wanted to ask a question about the comments in the code. Why can't I give "random.randint(1,6)" a variable name and then just re-use it fro...

I built a class to help me handle image data to use in machine learning. I thought that there would be a pre-existing package that did what I wanted but I couldn't find it so I wrote this. I am not intentionally trying to re-invent the wheel so if there's something that already does this please l...

I am automating a commentary app. Its kind of sports reporter software. Here I need to select the starting lineup players and their positions. I am automated the app for Basketball Big3 game. Each team have 3 players where there. I am executing correctly, but my code is running very slowly. I nee...

The task is to fetch some data (json) from an API with GET. If the location is not available for any reason, read a cache file. Otherwise write the cache file for future use. The following function works but it is clumsy due to nested try/except -> difficult to read Difficult to figure out wha...

A challenge from Code Fights; a function that takes a number no less than 10 and that will always have an even number of digits and determines if the sum of the first half of the digits equals the sum of the second half of digits. The function returns a Boolean. Maximum execution time is 4000 mil...

I've been porting over a java library I wrote to Kotlin. The library itself attempts to abstract out much of the need to know about WatchService's, WatchKey's, and BlockingQueue's that are necessary when monitoring the file system for events. This will be used by Java programs so taking steps to ...

This is a follow up to a previously asked Finding the closest pair of points divide-and-conquer question . The original code changed significantly based on answers therefore I created a new question per codereview guidelines for additional help. After incorporating suggestions from answers to t...

I have some zip files somewhere in the order of 2GB+ containing only html files. Each zip contains about 17,000 html files each. My code reads the file without extracting them, Passes the resultant html string into a custom HTMLParser object, And then writes a summary of all the zip files i...

This is a follow up of Non generic Skip List implementation in C++ Version 2 If you don't know what a Skip list is: https://en.wikipedia.org/wiki/Skip_list I tried to incorporate as much improvements as possible from the code review of the last skip list. Also the following changes were made: ...

I have a requirement to have a component that will check input against some rules in a strict order. The order of the rules is defined by the business. To keep example code simple, I'll try to define an analogy. Let's say business defines order of some int values. You'll be given sequence of int...

I would appreciate any help or nudge in the right direction. My goal is to cipher the plaintext using a key provided at the command line. I can't wrap my head around why my ciphertext comes out the same as my plaintext. I seem to have figured out case preserving and wrapping around the alphabet, ...