The various techniques used for maintaining stable program state in circumstances that, if not taken care of ("handled"), could cause serious issues, including logical bugs and abrupt execution termination.
7
votes
2answers
37 views
Checking for intersection points
The aim of the program is to find those points which comes under the intersection of at least 2 circles.(space is a 1000x1000 matrix)
...
7
votes
1answer
37 views
Controller action to process orders and payments
I'm trying to reduce the if statements and simplify this create action.
...
3
votes
2answers
72 views
Multi threaded TCP server
I wrote this just for fun, to hone my exception handling skills. I want to know what I can do better in terms of exception handling (and otherwise) in the below code
Server
...
1
vote
0answers
28 views
Multicast Mining Rig Scanner [closed]
The class MulticastMinerScanner is a Runnable that scans for miners (computers running a mining client called CGMiner, which is configured to listen/respond for a multicast message containing the ...
1
vote
0answers
38 views
5
votes
3answers
410 views
Try/catch in a Tic-Tac-Toe game
I'm looking at my code and it doesn't look very efficient. I'm simply trying to catch exceptions or prevent them from being thrown in the first place. Can you please take a look and tell me if there ...
4
votes
1answer
49 views
Querying MongoDB for information on a collection of books
I have this huge chunk of code. Is there any better to write this code, or am I too paranoid that I check every MongoDB query for error?
The logic is here:
Bookcollection = collection of books
Book ...
0
votes
1answer
53 views
1
vote
2answers
77 views
Stop connecting to a server after n unsuccessful attempts
I am trying to connect to a server.
If the connection goes through, then print an apt message.
If the connection does not go through, try for a total of n times. And quit after the nth attempt ...
5
votes
4answers
312 views
Java Stream Exception Handling
I find this piece of Java code really ugly and cumbersome. How can I refactor it to be more clean and easier to read?
...
2
votes
2answers
154 views
Returning latest database ID
I want my method to use a finally block so I can be ure that my EF entity is disposed after usage, even if an exception is thrown, but I would also like to not ...
2
votes
1answer
71 views
Is this the right way to handle Exceptions in PHP?
I'm using the function countLikes() to fetch URLs' Likes count from the Facebook API.
...
7
votes
3answers
102 views
RateBeer.com scraper
This was largely an exercise in making my code more Pythonic, especially in catching errors and doing things the right way.
I opted to make the PageNotFound ...
4
votes
1answer
86 views
AsyncTask which allows to handle exceptions on UI
The AsyncTask available in android, gives you the result from doInBackground on the UI thread so that you can update UI ...
0
votes
2answers
99 views
Elegant way to handle errors with JSP and Servlets (Model 2)
I have a form that submits to a registration Servlet, which inserts a new user to the database when they sign up to the web application. Depending on the erroneous user input, the Servlet will ...
3
votes
2answers
452 views
Class design for a student class
Problem Statement:
Design a STUDENT class to store roll, name, course, admission date and
marks in 5 subjects taken from user. Create an array of STUDENT
objects. Provide methods ...
2
votes
1answer
32 views
Improving efficiency and flow by changing subroutine orders
A batch file executes WinSCP.exe's console mode to download files and log the actions. Upon exit, WinSCP returns:
ERRORLEVEL 0 if the files are successfully ...
1
vote
3answers
68 views
1
vote
1answer
56 views
When should I call set_exception_handler with this exception handler class?
This is a simplified version of ExceptionHandler.php:
...
3
votes
1answer
90 views
Error-handling #ifdefs for AFNetworking requests
I am using AFNetworking 1.4.3 to send and receive network messages in iOS. My application works slightly differently in DEBUG and RELEASE mode, so I need to use ...
7
votes
2answers
99 views
Swift error handler for HomeKit
I have this universal error handler for my HomeKit app (currently in development). It grew out of wanting a single place to write error messages, show alerts, etc. I wanted a short, simple way to call ...
3
votes
1answer
120 views
File Exists Script Task for SQL Server SSIS
I have an SSIS package for SQL Server 2008. In this package, I need to verify that a file exists that matches a pattern of SomeFileName_*.txt where the wild card ...
3
votes
1answer
63 views
Handling errors on a web application
I have this C# production code for handling errors on a web application. There are currently two applications that use the class. In each application I initialize the class within the ...
2
votes
1answer
130 views
4
votes
1answer
93 views
Error Handling in Servlets and JSPs
I have an HTML login form that is processed by a servlet, which then redirects the user to a result page.
login.jsp:
...
15
votes
6answers
1k views
Is wrapping exceptions good practice?
I have recently been refactoring some code in an effort to improve the exception handling, particularly to aid in improving the level of information given to developers during development. However I ...
2
votes
1answer
278 views
Mongoose promise & error handling
I search for rails-like way of writing NodeJS code and it's more then hard to find the right way. The code quickly become bloated and unreadable. I would like my code to be as clean as possible.
...
3
votes
2answers
543 views
Exception handling best practices
I'm actually working on a piece of code which use the following code:
...
3
votes
2answers
48 views
Haskell monad- and error-handling-style
As an answer to excersise 2.3 in Chris Okasaki's book, Purely Functional Data Structures,
Inserting an existing element into a binary search tree copies the
entire search path even though the ...
0
votes
1answer
101 views
Nested try/catch with PDO in PHP
I would like to know if this is the correct way to use try/catch when dealing with multiple MySQL queries and PDO:
...
0
votes
1answer
24 views
Showing a JDialog whenever there is an exception
I have made a method which I use to show the exception error through a JDialog window whenever there is one in my program.
For now I can pass it either a String or ...
11
votes
4answers
804 views
Writing null-safe code to set form values
I will ask my question using the following example:
HTML
...
1
vote
1answer
40 views
Error-handling in Django model-adding form
I am writing a book database, and ultimately a library system, in Django. When a book is created without a title set, the ISBN will be used to automatically fetch book data from WorldCat I have just ...
4
votes
2answers
326 views
Simple factorial program using recursion
Two concepts I realized I needed to understand and use more are recursion and Exceptions. Thus, I combined both in the following program. Although it began with a focus on using recursion it became ...
11
votes
3answers
674 views
Returning status codes from business layer
This is what I've been doing so far in my business layer to return error messages to the user.
...
3
votes
1answer
99 views
Creation of a temp file on Windows
I implemented a test that reads data from temp file on Windows.
I originally had an issue that I solved with the help of this answer
...
3
votes
2answers
49 views
4
votes
3answers
195 views
Error-handling / Self-Validating mechanism
The below idea seemed to look clean, to allow the object itself to validate its values for different scenarios.
For eg:
While creating the object, the value of Object1 and Object2 in ...
6
votes
2answers
327 views
Generic error message factory
The purpose of this code is to centralize all error / status messages to present to the user. For example, registering an account and the user email address is already registered. A status code is set ...
1
vote
0answers
74 views
Mini eCommerce Application and Message/Warning/Error Handling
I decided to build a basic eCommerce application in c++ as a learning experience. In the past, I've gone with a fat controller, skinny model approach, and while it has worked, my results always end up ...
3
votes
1answer
63 views
Idiomatic catching of unchecked exceptions in ExecutorService.submit
OK, here's the problem space:
Lwjgl, a graphical library, has the ability to throw an unchecked LWJGLException on certain methods - like ...
2
votes
0answers
84 views
Rails app that scrapes forum using Nokogiri gem
I've built a website that scrapes a guitar forum's pages and populates Rails model. I'm using rake task along with heroku scheduler to run background scrapes every hour.
On the homepage, the forum ads ...
10
votes
4answers
1k views
Send email just once per day
I want to send an email just once per day. There is one button and any user can click that button. The email must not be sent twice. When the first user clicks the button, the email is sent. If ...
3
votes
2answers
211 views
5
votes
1answer
94 views
Pausing a SwingWorker with a Timer
I made a SwingWorker which is fetching tweets using the twitter4j API.
The twitter API will allow 180 queries every 15 minutes, and then throw an exception with ...
3
votes
1answer
845 views
Error Handling - Controller's OnException and Application_Error
I'm pretty new to MVC. Below is the code that I have added to an existing MVC 5 application. The code is using log4net to log any run-time error/exception.
NOTE: I could override ...
7
votes
2answers
99 views
Exception handling for HTTP request timer
This method is used to check a URL and return the time it takes to check and the HTTP status code:
...
3
votes
1answer
83 views
7
votes
3answers
139 views
Creating check parameter class instead of repetitive null checks
What I'm trying to accomplish is to have a error checking class mostly to check if parameters that are pass null but also data structures within class are not null. So my thought is a clean static ...
4
votes
1answer
59 views
If vs try/catch
The following code, written in synchronous Node.js and intended to be used as a shell script, nests a try/catch inside a conditional.
Because both the conditional and the try/catch serve a similar ...
