Exception handling is a programming language construct or computer hardware mechanism designed to handle the occurrence of exceptions, special conditions that change the normal flow of program execution.
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A middleware with process exception never called [migrated]
I have this middelware which is suppose to catch 500/400 exceptions and deal with them. But it never gets called. I've put it in the beginning and end of the ...
5
votes
2answers
62 views
Searching for files in a specified directory
I am currently writing a program that allows me to search for files in a user-specified directory. My current code is as follows:
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2
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2answers
40 views
Java ClassNotFoundException Handling
Is there a better way to handle this ClassNotFoundException ?
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1
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1answer
34 views
Compute logistic regression on tweet objects
Is my approach good to naming variables and exception handling? I would like to make this code more robust and maintainable. I need advice on exception handling, var naming and comments.
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1answer
24 views
Class for connecting to mongodb databases and return collection object
This code connects to a mongodb database and returns collection objects. I am concerned about the exception handling, variable names and comments.
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3
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2answers
77 views
Check quotient and division by zero [closed]
Please evaluate this code and tell me if it is standard C++ coding:
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5
votes
3answers
103 views
StoredErrorWriter
Functionality that overwrite standard error message with trace to user friendly message with error number stored in DB.
Not yet completed some stuff with trx...
Please review this.
DB table:
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1answer
62 views
Exception Handling with `instanceOf` rather than `catch` [closed]
Would there be any reason to use the following code?
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7
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1answer
445 views
Dividing 2 numbers
The problem is to input, divide 2 ints and display the result.
Please, review my program. It worth noting, I've intentionally used ...
3
votes
2answers
36 views
How to reformat this code so I don't use 'Exit Try' and 'Exit For'?
I use SonarQube to help me try and become a better programmer to program along with 'best-practice' standards.
There are business rules when a user is submitting data they enter in a datagridview ...
5
votes
2answers
44 views
Proper action when a Java program fails
I have a program that has to initialize a few big things (connect to a few databases, parse some XML) and without the initialization being successful the program would not be able to continue.
Right ...
5
votes
3answers
444 views
Should this be written with exception handling instead of nested if-thens?
I have a function that iterates through a list of file updates, and for each file, if updates are needed, download the file from the server, make the updates, and upload the updated version. Each ...
5
votes
3answers
116 views
4
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1answer
66 views
Simple helper method for JUnit3 tests
In JUnit 3, I cannot tell JUnit what type of exception is expected. In JUnit 4, the ...
7
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3answers
176 views
Simple MPG calculator in Python
I am a self taught coder taking a Programming Fundamentals class to work towards a degree. It's based on Python, which I'm not as familiar with as other languages. I added error handling like I would ...
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3answers
1k views
Java method - levels of abstraction
In his Clean Code book, Robert C. Martin states that functions should do only one thing and one should not mix different levels of abstraction. So I started wondering whether the code below meets ...
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1answer
75 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:
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5
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1answer
146 views
Code to construct a complete graph
I have tried to design a class for a complete graph.
Needless to say, disadvantages of my current solution are very visible:
dependent inputs have led to verification headaches.
In this code we ...
3
votes
1answer
39 views
Passing around Connection
I have a myCon=getUnusedConnection() method that gets a connection from Connection pool. I also have a ...
3
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1answer
151 views
Is there any way to make this function, which takes char*, exception-proof?
I should preface this question by saying that I'm a Java programmer working on my first C++ application, so perhaps there are certain obvious things I don't know.
Some background on the problem: Our ...
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2answers
97 views
What's better: return null or handle the Exception?
I'm in doubts what approach to take here, please have a look on the code below:
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2
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1answer
67 views
Review of approach to inheriting from std::exception [closed]
I would like a review and recommendations for improvement of my approach to resuing std::exception. Just a quick justification for the four constructor arguments: I want to force myself to always ...
7
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3answers
126 views
Exceptions handling, what would you do?
I know that there are several ways to handle exceptions and probably a good way is to keep the handling consistently and use the pattern which feels comfortable for himself, but I would like to get ...
3
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1answer
128 views
Rethrowing exception just as an information
I have something like that:
1) My custom exception class
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2
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1answer
107 views
Exception Handling Design
I am trying to design an exception hierarchy for logging errors.
These logs will be used only by developers and not by users.
This is a base class that I came up with.
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1answer
109 views
Exception based on std::exception but easy to modify and rethrow
I've looked at boost::exception and realized it is too advanced for my project, as my colleagues mostly have legacy C background. I do not need arbitrarily complex ...
1
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1answer
77 views
How to refactor this importer to handle validation errors?
This is my importer to database from excel file. I would like to handle situations when any error raise. To not breaks whole import when one errors occurs.
For example when there is duplicated record ...
3
votes
1answer
135 views
3
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2answers
538 views
Review of “is port in use?”
Review this code. It should return true if a port is in use, false if the port is not in use. Clarification : "In use" means ...
5
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1answer
826 views
Reducing cyclomatic complexity
I ran a sonar analysis on my code and it told me the cyclomatic complexity is too high (sonar's limit is ten branches).
Here is my code:
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10
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3answers
758 views
Try-catch inside while(true)
I have a situation in which a program, communicating over the network, can timeout or otherwise fail to establish a connection through no fault of my application or its user. If and when this happens, ...
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2answers
378 views
A better way of checking if index is out of bounds
For a simple project, I represent a two-dimensional grid as a one-dimensional array, with both row and column indices between 1 and ...
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2answers
141 views
Exceptions to control data read flow
I previously posted a Reservoir-Sampling program, which was basically a test version of this one. This is an assignment. In the code below, I use RunTimeException ...
2
votes
1answer
283 views
Managing Data access layer exceptions
I am developing a webapp using Spring MVC + Hibernate. I created a GenericDao class that implements basic data access methods, to be extended by all my concrete daos in the app. What I want advice or ...
5
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2answers
174 views
Object can throw exception on construction, but I don't want it to stop everything
I have a factory that loads configuration from an xml file, and uses the configuration to be able to create objects of an appropriate type with appropriate settings. My application does a number of ...
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1answer
55 views
Dealing with resource closure when rethrowing an exception
I would like a review and recommendations for improvement of the code below. I want to allow an exception to be handled by the caller, so I am rethrowing it. But I have resources to close. So I ...
5
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1answer
342 views
Yii exception usage
I've never used a framework before, so I wanted to see if this fairly simple scenario was done correctly or could be improved:
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4
votes
2answers
254 views
OOP Methods/Functions that can return a value or an exception
Introduction
I'm currently working through a series of bugs in an application. Our application is written in C#/ASP.NET (on the server) and HTML/CSS/JavaScript (on the client). We are using ELMAH to ...
4
votes
1answer
104 views
Is brute force the accepted best practice for handling Excel COM 'busy' exceptions?
Following on from a question about handling-com-exceptions-busy-codes I would like to know if the following model is the accepted best practice of handling Excel COM busy messages when accessing the ...
3
votes
2answers
563 views
Tasks: exceptions and cancelation
I need to do a long running task. I've done this by executing a Task while there's a loading box on the UI. When an exception is thrown, I want to stop the task and show a msgbox to the user. If ...
3
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1answer
55 views
What changes, if any, are required to make the following Perl eval bullet proof?
eval {
# here is put some code that may throw exception
1; # Why is the "1;" here ?
} or do {
my $error = $@;
# Handle error.
};
Does the ...
8
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5answers
417 views
1
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1answer
58 views
Is 'try / finally' the best way for me to handle (and close) this long-running IMAP4 connection?
I'm writing a script to archive email messages from one IMAP folder to another. It looks, more or less, like the following. I've obfuscated about 30 lines unrelated to this question:
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3
votes
2answers
64 views
1
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1answer
957 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
85 views
Wrapping an Exception with context-management, using the with statement
Before I try to make this work, I wondered if anyone had tried this, whether it was a good idea or not, etc.
I find myself doing this a lot:
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2
votes
2answers
138 views
What to do with the Exception when you fail to close() a resource?
I am happy to receive all recommendations for improvement. But below I am mostly interested in a review of my handling of the exception thrown by the close() ...
4
votes
3answers
250 views
Wrapping Exceptions
It doesn't happen often, but I sometimes come across cases where I miss Java's checked exceptions, especially in medium sized methods of about 30 odd lines that call outward. Often, the following ...
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vote
3answers
90 views
When to catch/wrap an exception vs declaring that method throws exception
In the snippet below the three exceptions I declare in the throws clause are all thrown by BeanUtils.setProperty(), which is a third party library.
Is letting ...
1
vote
1answer
781 views
Multi Threaded Error Logger
I am trying to design a class that will log errors to a text file, the application is using threads heavily so it may be that 2 errors that need to be written at the same time. I know there are 3rd ...
