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Can Java 8 code be compiled to run on Java 7 JVM?
...res new JVM features.
Lambdas could run on Java 7 as-is, if the necessary API classes just would exist there. The invokedynamic instruction exists on Java 7, but it would have been possible to implement lambdas so that it generates the lambda classes at compile time (early JDK 8 builds did it that ...
Get screen width and height in Android
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@digiphd wouldn't Parang's code work on all API versions? All methods were introduced before API level 8 and I didn't find them deprecated at the android dev site.
– Sufian
May 22 '13 at 12:52
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What's the key difference between HTML 4 and HTML 5?
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HTML5 introduces a number of APIs that help in creating Web applications. These can be used together with the new elements introduced for applications:
An API for playing of video and audio which can be used with the new video and audio elements.
An AP...
Long-lasting FB access-token for server to pull FB page info
... same user account that is the page admin)
Head over to the Facebook Graph API Explorer
On the top right, select the FB App you created from the "Application" drop down list
Click "Get Access Token"
Make sure you add the manage_pages permission
Convert this short-lived access token into a long-lived...
Why doesn't JUnit provide assertNotEquals methods?
...UnderTest.equals(someOtherObject))? I'm not convinced by the fancy matcher APIs - it seems to be considerably harder for a programmer to explore/discover how to use them...
– bacar
May 8 '12 at 17:49
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How to verify Facebook access token?
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@rynop, well, the name of the API endpoint is "debug_token", and it is described in a section of the Facebook API documentation labelled Getting Info about Tokens and Debugging. This section of the documentation is referred to by HTML anchor #debug, and s...
Combining node.js and Python
...ormance may be decreased a little, however Thoonk provides a really simple API that simplifies having to manually deal with a socket. Thoonk also helps make it really trivial to implement a distributed computing model that allows you to scale your python workers to increase performance, since you ju...
Collection versus List what should you use on your interfaces?
... question as to why not List<T>, The reasons are future-proofing and API simplicity.
Future-proofing
List<T> is not designed to be easily extensible by subclassing it; it is designed to be fast for internal implementations. You'll notice the methods on it are not virtual and so cannot ...
How to find the created date of a repository project on GitHub?
...ow to know the created date of a project on GitHub.
Use the Repos GitHub API to retrieve this information
Syntax: https://api.github.com/repos/{:owner}/{:repository}
Example: https://api.github.com/repos/libgit2/libgit2sharp
The JSON payload will expose a created_at member with the UTC date th...
Difference between / and /* in servlet mapping url pattern
...llowing controller will face a 404 error when you request it using /perfix/api/feature/doSomething
@Controller()
@RequestMapping("/perfix/api/feature")
public class MyController {
@RequestMapping(value = "/doSomething", method = RequestMethod.GET)
@ResponseBody
public String doSomethin...