Tagged Questions

An exception is a rarely occurring (exceptional!) condition that requires deviation from the program's normal flow.

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1
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2answers
33 views

Simple interface and class for holding text to be analyzed

I am making a sentiment analysis library targeted first at social media text (like Twitter) and then I will expand it for more general use. For the first step I am making a simple interface and a ...
1
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3answers
61 views

Use of Exception to log execution stack trace

I've been back and forth with a colleague over the use of Throwable.fillInStackTrace. This Log class is meant to wrap the Simple ...
3
votes
2answers
52 views

Guard statement extension methods for common object guards

I wrote a couple of extension methods for common guard statements I write a lot. These are extension methods for Object, and allow me to quickly guard against common scenarios. I'm using .Net 3.5 ...
4
votes
2answers
268 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 ...
2
votes
2answers
140 views

“Nice Angles” - Code Eval challenge

Out of fun, I solved "Nice Angles" challenge on CodeEval in C# 4.0: CHALLENGE DESCRIPTION: Write a program that outputs the value of angle, reducing its fractional part to minutes and ...
3
votes
2answers
48 views
3
votes
2answers
85 views

Cleaning up file resources in a DRY manner

I've written a function that generates a report, and then sends it as an attachment to an email. I don't want to clutter the function with a lot of calls to close up the filesystem, if there was an ...
3
votes
2answers
71 views

Custom exit with only some exceptions in Python

I want to define an exit code for some exceptions and some exceptions only. I want that the only input is that dictionary with the definition. ...
6
votes
3answers
266 views

Throwing exceptions when validation fails

When I want to check the validity of an attendance being entered into the system, I perform following action. AttendancePresenter Class ...
5
votes
2answers
143 views

Throw exception in constructor bad or good practice

I am doing a code review and I have encountered a class in an application that is throwing an exception in the constructor: ...
3
votes
1answer
29 views

Good approach to raise an exception

I have class House and module Lockable. Locking and unlocking House should reflect the real ...
8
votes
1answer
241 views

Unhandled Exception handler that captures a screenshot

So, whether you're still in the development stages or your app is already on the app store, you always hope your app isn't crashing. But if it is, you want to be sure you've got good crash reports, ...
14
votes
2answers
579 views

Using finally with return statement or not

I was wondering if it is the proper way to always put the return statement of a function with a try-catch clause in the finally ...
1
vote
1answer
48 views

How to add exceptions in a class that reads a config file?

I am using Boost for reading a config file that is in the .json format. I am using a class to do this and I am calling exit(message) in case of bad values or ...
2
votes
2answers
104 views

Python and Exception Handling IOError [closed]

I'm trying to work with exception handling by displaying "No Such File" when the file doesn't exist. I need to use a try statement. ...
5
votes
2answers
274 views
4
votes
1answer
124 views

Throw exception in favor of an error?

I've been reviewing my previous projects for the last few days. I've found that I never return an error from any of my methods. I always throw exceptions. I googled about exceptions vs errors and I ...
5
votes
2answers
3k views

Insert a character into a string

For practicing reasons I would like to write a method which inserts a character into a string. I would like to know: What is the best practice concerning placement of a comment within methods? For ...
5
votes
3answers
204 views

How to chain exceptions?

I have some function like: ...
18
votes
4answers
2k views

Is it a good practice to put an exception handler in every method?

I always add an exception handler when a new method is created, and I don't know if it is a good or bad practice. I thought it may be a bit of an annoyance when viewing the source code. Is it a good ...
4
votes
1answer
74 views

Generator expression in combination with StopIteration: kind of a hack?

The first piece of code should cover the standard expected data. But as you can easily see, the data not always conveys to this standard. The code works great but I wonder if this is thought be a ...
3
votes
1answer
113 views

Throw an exception to control the flow of code execution

There is a recommendation not to use an Exception to control the flow of execution. This gives me a reason for doubt when I do something like this: ...
2
votes
0answers
187 views

SDL boilerplate

The SDL code example on the SDL_Init page seems to be overly verbose, creating an exception class entirely for SDL_Init. I ...
5
votes
1answer
194 views

Rethrowing exception just as an information

I have something like that: My custom exception class: ...
3
votes
3answers
428 views

Reading a text file, need help cleaning exception handling

Which of the following is cleaner / more adopted standard of handling exceptions while coding a stream ? I would also appreciate a reason why one of the following trumps over other ? In my opinion I ...
3
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1answer
147 views
0
votes
1answer
85 views

Function that uses an exception to check if user exists

I have a User class that will throw an exception if the userid provided in the parameter does not correspond with a user. I've written a helper function that will return true or false depending on ...
0
votes
2answers
120 views

Try, catch, exceptions with java

Is this code good for checking if the variable texto is empty or not? How would it be done with try and catch? ...
0
votes
1answer
106 views

How to handle returned value if an exception happens in a library code

There is a lib code, trying to parse an Element Tree object. If exception happens, it either returns an empty dict of dict or a partially constructed object of such type. In this case, caller needs to ...
1
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1answer
2k views

Accumulating inner exception messages

Say, there is a class with some methods, that have try catch blocks. I need to accumulate messages from all inner exceptions of generated exception and use ...
2
votes
2answers
270 views

Raising an assertation error if string is not an email

I created a class EmailParser and check if a supplied string is an email or not with the help of the standard librarie's email module. If the supplied string is not an email I raise an exception. ...
1
vote
3answers
178 views

Java Exception Message

I have a few custom exception classes that I created simply for the sake of having my own exception message: ...
2
votes
2answers
170 views

Closing a ResultSet and rethrowing an Exception

Is this an acceptable way to make sure a java.sql.ResultSet is always closed, and also make sure that an Exception caught is propagated to the caller? Please don't hesitate to review other aspects ...
6
votes
5answers
407 views

Handling null exception when having multiple variables

I have a lot of variables that I need to check for exceptions and output the empty field in case of a null returned value (I am reading a calender list from Sharepoint and my program is supposed to ...
3
votes
1answer
524 views

Is there anything wrong with my self-implemented C++ exception class?

I wrote my own exception class, deriving from std::runtime_error to have Error-IDs, timestamps and inner exceptions. It seems to work, but are there any drawbacks? ...
10
votes
12answers
3k views

Can I return a null in a function if something goes wrong?

Lets say I have a function that should return me the information about all textfiles in a folder: ...
2
votes
1answer
231 views

Suggestions for improving error handling

I am interested in finding out what is the correct way of implementing error handling for this situation in C#. The system tries to do an operation. If the operation succeeded (returns a non-error ...
1
vote
1answer
179 views

Rails stylistic exception and bang usage

Question whether I should be throwing exceptions in the below model code (and rescuing in the controller - rescues not implemented below) or returning nil (in both or one of the exception cases). ...
0
votes
1answer
68 views

uplifitng return value error reporting to Exception based error reporting

In Framework Design guideline book there is a chapter about Exception and they talk about return-value-based error reporting and exception based error reporting and the fact that we in a O.O language ...
1
vote
1answer
165 views

PHP - Is this proper use of exceptions for error handling within classes?

I've searched plenty on this topic and have gotten a lot of good (but different) results. Some of the results weren't quite related and it does seem to be a matter of preference in the end, but I'm ...
5
votes
2answers
7k views

Is this the wrong way to handle AggregateException with Tasks

I'm seeing a lot of code like this at my new site ...
2
votes
3answers
541 views

Exception handling continuing the excecution

This code is for continuing the execution after an exception, and this is ugly: ...
2
votes
1answer
340 views

Simple factory pattern in scala (attempting to restrict use of new)

I am a Scala newbie and attempting to improve my skills. I have decided to be playful about it and work to do a conversion of the spaceinvaders game supplied with the LWJGL. It consists of 10 Java ...
1
vote
1answer
229 views

Critical review of a Simple Class

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4
votes
0answers
1k views
4
votes
1answer
954 views

An implementation of “finally” in C++0x

I've made a quick finally type in C++: ...
5
votes
2answers
3k views

Generic C++ exception catch handler macro

I have this set of legacy C++ projects with a large number of public functions. At the start, none of those publicly exposed functions had try..catch insulation ...
2
votes
3answers
590 views

Clumsy try catch - how to perfect it?

I have the following construction in the program: ...
14
votes
5answers
953 views

What’s your opinion on a Throw() method?

Lately I seem to run into a situation very frequently where I want to write something like the following: ...
5
votes
2answers
4k views

Handling COM exceptions / busy codes

This code writes to Excel using the COM interface. The general issue is that any exception handling has to handle the "Excel is busy" exception. This occurs if information is sent to Excel quicker ...