Code Review newsletter

Top new questions this week:

Isn't this Interest-ing?

This is the fifth project in my CS1 class. It's a bit more drab than my past projects, so my titles are getting worse unfortunately. :( Write a program that computes the annual after-tax cost of …

c++ beginner homework finance

asked by syb0rg 17 votes answered by EngieOP 22 votes

Retro Rocket ASCII Art

Inspired by Nested for-loop ASCII art, I looked at building a more complicated ASCII art than just the normal 'diamond' and 'triangle' variations that crop up occasionally here. The challenge: …

java formatting rags-to-riches

asked by rolfl 15 votes answered by maaartinus 11 votes

Multiplayer bowling in Ruby, with variable skill

This is a multiplayer bowling simulator in Ruby. It allows for variable skill levels, and produces weighted random results for each roll based on those skill settings. The methods are grouped in four …

beginner ruby game conditions

asked by a2bfay 11 votes answered by Flambino 8 votes

Finding longest word in a string

I was working on a problem from Coderbyte. The challenge was to write a function that takes in a string and returns the longest word in the string. If two words are the same size then it asks to …

javascript strings parsing programming-challenge

asked by user2801122 10 votes answered by 200_success 11 votes

Probabilistic matchmaking simulation

The following is a problem I found on this wiki. What can I do to optimize my algorithm, and make this code more C++11? Write a program to discover the answer to this puzzle:"Let's say men and …

c++ c++11 random simulation numerical-methods

asked by EngieOP 9 votes answered by glampert 4 votes

Threadsafe HashMap with snapshot support

The problem ConcurrentHashMap provides very weak consistency guarantees w.r.t iteration: guaranteed to traverse elements as they existed upon construction exactly once, and may (but are not …

java concurrency

asked by radai 9 votes answered by rolfl 3 votes

Piano app in Swift

I'm making my first app in Swift: a Piano app. I'd like to get your feedback especially about how I can make codes shorter. I maybe have to use arrays and loops and something, and searched by myself …

swift audio

asked by Keita Bick Ohshiro 9 votes answered by vacawama 14 votes

Greatest hits from previous weeks:

Learning to code a graph

This is my first attempt at putting the conceptual knowledge I've gained about graphs into code. When searching for examples they all seem overly complicated, and searching for a tutorial or …

c++ graph pointers

asked by Tyler Hills 5 votes answered by Loki Astari 5 votes

Faster way to convert DataTable to List of Class

I am using ExcelDataReader to import an excel file to a dataset. Example Excel table below: //ID Name Display Order Active //1 John 1 1 ID, DisplayOrder and …

c# performance linq converting datatable

asked by devspider 3 votes answered by IharS 2 votes

Can you answer these?

The Functional FizzBuzz Kata

I run a coding dojo at work. For one session I'm to showing that you can use a kata to get into a new language. I'm using the FizzBuzz Kata to to show F# (and JavaScript) because it is short. The …

beginner f# fizzbuzz

asked by Paul Spencer 4 votes

Unity Dependency Injection

This is my first time using Unity so bear with me for a moment. I have a sample Visual Studio 2012 solution with 4 projects (but only two of these projects will be used with Unity). This is the …

c# dependency-injection

asked by burritowarrior 2 votes

AsyncTask and IntentService

I was disappointed using GCM, so I'll use long polling for crucial parts. Following my approach: protected void onCreate(Bundle savedInstanceState) { new LongPolling().execute(); } private …

java android

asked by Bob 2 votes