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Java Error Codes Exceptions


Your current approach (which tries to return 3 pieces of data) will not work the way you have it. –jahroy Dec 20 '12 at 0:22 add a comment| 1 Answer 1 Hope that helps. There are cases where you might prefer, or have, to use error codes in place of Exceptions, and these have been adequately covered already (other than other obvious constrains such as share|improve this answer answered Oct 31 '08 at 12:46 Jim C 4,8621425 add a comment| up vote 0 down vote I think it also depends on whether you really need information click site

This will produce the following result − Output Depositing $500... public class ErrorCode { int getNumber(); } error: Missing method body or declare abstract Any ideas; help! Add dynamic fields to your exceptions Good exception handling means also recording relevant data, not just the stack trace. You need to understand them to know how exception handling works in Java.

Exception Handling With Error Codes In Java

Delivering an error message to customers is generally preferable to delivering wrong data that could look to be 'real', and the latter situation is much easier to run into with a To use this statement, you simply need to declare the required resources within the parenthesis, and the created resource will be closed automatically at the end of the block. For example, you decide to use exceptions only.

You can even use the implicit ordinal() method or load numbers from a file or database. 4. Do you think exceptions hierarhy would be better here? In C you don't have exceptions at all. Enum Error Codes Java Use it to filter, transform, and aggregate data on-the-fly in your web, mobile, and desktop apps.

You can google "log servers" or "log management" to see a few. Java Error Codes Best Practices Advanced Search Forum Java Programming Java Programming Getting Java Error Code If this is your first visit, be sure to check out the FAQ by clicking the link above. I know what you're thinking: How will I tell exceptions apart if they're all the same type?  And how will I track type-specific properties?  Read on! 2. By Alex - January 19, 2013 4:03 PM Reply There's a good chapter in Effective Java on this topic.

Doing this makes it impossible to use the Java language catch clause to selectively catch or ignore errors (you have to call methods on the exception to select exceptions and possibly Java Exception Codes It's simply a variation of stackoverflow.com/a/3157182/632951 –Pacerier Jul 25 '14 at 12:00 add a comment| up vote 11 down vote Error codes can be ignored (and often are!) by the callers I've been struggling with how to build a simple but usable REST exception handling process complete with logging to a mongodb for production use. Based on these, we have three categories of Exceptions.

Java Error Codes Best Practices

There are many ways to do this and may products to choose from: log collectors, remote loggers, JMX agents, system monitoring software, etc. In it, you'll get: The week's top questions and answers Important community announcements Questions that need answers see an example newsletter By subscribing, you agree to the privacy policy and terms Exception Handling With Error Codes In Java Thanks for pointing this out. Custom Exception With Error Code In Java Otherwise I have to know every exception that can be thrown by every line in my function to know what it will do (Read The Exception That Grounded an Airline to

I am not defending it, just poiting out that you are incorrect. –Tim Oct 31 '08 at 14:20 In fact there are many other ways to do it. http://shpsoftware.com/error-code/it-error-codes.php The time now is 05:05 AM. Following are some scenarios where an exception occurs. By Dele Taylor - August 20, 2013 6:37 AM Reply I wanted each category of errorCodes to be represented by a different enum type. How To Get Error Code From Exception Object In Java

Try the Forums. The resource declared in try gets instantiated just before the start of the try-block. we have to close them explicitly using finally block. navigate to this website It's a good middle ground.

Use return values or ref (or out) parameters for that. Java Error Codes List Einstein Please use [CODE]...your code here...[/CODE] tags when posting code. From another hand it could be hard to create new exception subclass for every particular case and then exception codes are used.

I've had a surprising amount of success with the single exception approach over the years.

  1. Messages can't be easily mapped to user-friendly text.
  2. Here Client is not interested in knowing which part of logic caused that error code.
  3. Java throw new SystemException(PaymentCode.CREDIT_CARD_EXPIRED); 1 throw new SystemException(PaymentCode.CREDIT_CARD_EXPIRED); Now when you need to test for a specific case, just compare the exception's code with the enum.
  4. By Dele Taylor - January 20, 2013 5:20 PM Reply Owen -- you're right that a single exception class is taking things far.
  5. Some class try{ // .....
  6. Since enums can implement interfaces, but not extend classes, that's what I used.

Good luck, Dele By Vikash - August 12, 2013 2:22 AM Reply Why your errorCode is an interface and why not class? However, if you are just interested in result and don't care why that result then go for error code. However, scenario like you have login method and you want to know it was successful or not, there either you just return boolean or to show correct message, return error code. Error Code Vs Exception Although it's a C++ article the principles are generally applicable, and I have translated the enforcements concept to C# quite successfully.

E.g. "Exceptions for high-level stuff, error codes for low-level stuff" is very subjective. Standardisation of Time in a FTL Universe Nest a string inside an array n times In car driving, why does wheel slipping cause loss of control? share|improve this answer answered Mar 22 '14 at 12:31 gomons 1,438719 add a comment| up vote 0 down vote For most applications, exceptions are better. my review here A good API allows to change and extend failure behavior in several ways without breaking clients.

HTTP responses for example. By Kevin - January 19, 2013 10:42 PM Reply Excellent approach! What is the 'dot space filename' command doing in bash? Finding the right server — or determining that the problem only affects one server -- can be quite a headache.

Are non-english speakers better protected from (international) Phishing? By Dele Taylor - August 2, 2013 12:09 PM Reply ErrorCode is defined as an interface in the zip file, not sure why you're seeing a class.

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