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Understanding checked vs unchecked exceptions in Java
...tException is unchecked (= is subclass of RuntimeException). Why? I don't know. (but there should have been a method isValidInteger(..))
Is RuntimeException an unchecked exception?
Yes, exactly.
What should I do here?
It depends on where this code is and what you want to happen. If it is in the UI l...
Download file of any type in Asp.Net MVC using FileResult?
...010. This just shows the correct MIME type to use when the MIME type is unknown. ReadAllBytes was added years later in an edit. Why is this my second most upvoted answer? Oh well.
– Ian Henry
May 6 '15 at 21:51
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$PHP_AUTOCONF errors on mac os x 10.7.3 when trying to install pecl extensions
...-s /usr/local/Cellar/autoconf/2.69/bin/autoheader /usr/bin/autoheader
I know that this question was for 10.7, but I hope my answer is useful for someone on 10.8. :)
Updated: Also works on 10.10 Yosemite.
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Can't seem to discard changes in Git
...s in, then did git status and made sure that all the files in that dir are now marked as deleted. After that I simply did git checkout -f and everything was back to normal.
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Simple explanation of clojure protocols
...gt; eval(node.left) + eval(node.right)
NotOperator => !eval(node)
Now, if you want to add a new operation, say, type-checking, that's easy, but if you want to add a new node type, you have to modify all the existing pattern matching expressions in all operations.
And for typical naive OO, ...
RESTful way to create multiple items in one request
.../api/sheep/{id} and we can POST to /api/sheep to create a sheep resource.
Now, if we want to support bulk creation, we should consider a new flock resource at /api/flock (or /api/<your-resource>-collection if you lack a better meaningful name). Remember that resources don't need to map to you...
Undefined reference to `sin` [duplicate]
...NIX Specification". This history of this standard is interesting, and is known by many names (IEEE Std 1003.1, X/Open Portability Guide, POSIX, Spec 1170).
This standard, specifically separates out the "Standard C library" routines from the "Standard C Mathematical Library" routines (page 277). ...
Big-O summary for Java Collections Framework implementations? [closed]
...soon. While it is probably safe to assume that the audience members will know Big-O notation, it is probably not safe to assume that they will know what the order of the various operations on various collection implementations is.
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What exactly do the Vagrant commands do?
..., when you execute vagrant ssh to ssh into VM. It is utilizing it's well known ssh key. The information on this key is provided by vagrant ssh-config. This is useful in case you want to change the well know key to your own private key and prepare boxes to use that.
Also some times, you may want t...
What is the current state of the art in HTML canvas JavaScript libraries and frameworks? [closed]
... design editor, which it was originally created for.
Edit: The project is now available on github (open-sourced under MIT License)
To get started, check out:
Demos (simple & complex, with code to show how they're done)
Fabric.js presentation at FalsyValues (and another one at BK.js)
Wiki on ...