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Using Linq to group a list of objects into a new grouped list of list of objects
...
var groupedCustomerList = userList
.GroupBy(u => u.GroupID)
.Select(grp => grp.ToList())
.ToList();
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lexers vs parsers
...the parse tree. E.g. all these token strings: [number][operator][number], [id][operator][id], [id][operator][number][operator][number] will be classified as "expression" nonterminal by the C/C++ parser.
They can attach some additional meaning (data) to the recognized elements.
When a lexer recogn...
How do I run IDEA IntelliJ on Mac OS X with JDK 7?
...use Mac OS X 10.8.2, and use JDK 7. Now I downloaded the latest version of IDEA IntelliJ, 11. But it doesn't seem to start without JDK 6. Is there any workaround?
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Best Practices for securing a REST API / web service [closed]
...d best practices for dealing with security (Authentication, Authorization, Identity Management) ?
18 Answers
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Bootstrap full-width text-input within inline-form
I am struggling to create a textbox that fits the entire width of my container area.
5 Answers
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Gradle to execute Java class (without modifying build.gradle)
... a JavaExec task.
application plugin
Activate the plugin:
plugins {
id 'application'
...
}
Configure it as follows:
application {
mainClassName = project.hasProperty("mainClass") ? getProperty("mainClass") : "NULL"
}
On the command line, write
$ gradle -PmainClass=Boo run
Java...
How to share my Docker-Image without using the Docker-Hub?
... from there and install it in a different docker server, is probably a bad idea to play with the internal representation used by Docker.
When you push your image, these layers are sent to the registry (the docker hub registry, by default… unless you tag your image with another registry prefix) an...
Conditionally ignoring tests in JUnit 4
...nit way is to do this at run-time is org.junit.Assume.
@Before
public void beforeMethod() {
org.junit.Assume.assumeTrue(someCondition());
// rest of setup.
}
You can do it in a @Before method or in the test itself, but not in an @After method. If you do it in the test itself, your @B...
What does JVM flag CMSClassUnloadingEnabled actually do?
...lly does, other than some very fuzzy high-level definitions such as "gets rid of your PermGen problems" ( which it doesn't , btw).
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How is OAuth 2 different from OAuth 1?
...have cryptography. This hearkens back to the old Twitter Auth API, which didn't require the application to HMAC hash tokens and request strings. With OAuth 2.0, the application can make a request using only the issued token over HTTPS.
OAuth 2.0 signatures are much less complicated. No more speci...