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difference between throw and throw new Exception()
...w ex; throws the original exception but resets the stack trace, destroying all stack trace information until your catch block.
NEVER write throw ex;
throw new Exception(ex.Message); is even worse. It creates a brand new Exception instance, losing the original stack trace of the exception, as well...
Why use @PostConstruct?
In a managed bean, @PostConstruct is called after the regular Java object constructor.
5 Answers
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How do I use Wget to download all images into a single folder, from a URL?
I am using wget to download all images from a website and it works fine but it stores the original hierarchy of the site with all the subfolders and so the images are dotted around. Is there a way so that it will just download all the images into a single folder? The syntax I'm using at the moment i...
Entity Framework Provider type could not be loaded?
I am trying to run my tests on TeamCity which is currently installed on my machine.
34 Answers
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Android Studio Collapse definitions and methods
How can I collapse all definitions and methods within the Android Studio editor?
14 Answers
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How can I use grep to find a word inside a folder?
..., a directory is a kind of file (there is a term "regular file" to specifically refer to entities that are called just "files" in Windows).
grep -nr string reads the content to search from the standard input, that is why it just waits there for input from you, and stops doing so when you press ^C (...
How to remove all line breaks from a string
...haracter encoding.)
Therefore, the most efficient RegExp literal to match all variants is
/\r?\n|\r/
If you want to match all newlines in a string, use a global match,
/\r?\n|\r/g
respectively. Then proceed with the replace method as suggested in several other answers. (Probably you do not w...
What are all the possible values for HTTP “Content-Type” header?
...urce).
As you can see the list is way too big for you to validate against all of them. What you can do is validate against the general format and the type attribute to make sure that is correct (the set of options is small) and just assume that what follows it is correct (and of course catch any ex...
How to decompile an APK or DEX file on Android platform? [closed]
...r versions.
for more how-to-use-dextojar. Hope this will help You and all! :)
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Java: Best way to iterate through a Collection (here ArrayList)
...one is useful when you need the index of the element as well. This is basically equivalent to the other two variants for ArrayLists, but will be really slow if you use a LinkedList.
The second one is useful when you don't need the index of the element but might need to remove the elements as you it...