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Calculating the difference between two Java date instances
...
The JDK Date API is horribly broken unfortunately. I recommend using Joda Time library.
Joda Time has a concept of time Interval:
Interval interval = new Interval(oldTime, new Instant());
EDIT: By the way, Joda has two concepts: Inte...
How to read all files in a folder from Java?
... = new File("/home/you/Desktop");
listFilesForFolder(folder);
Files.walk API is available from Java 8.
try (Stream<Path> paths = Files.walk(Paths.get("/home/you/Desktop"))) {
paths
.filter(Files::isRegularFile)
.forEach(System.out::println);
}
The example uses try-wit...
How to sort an ArrayList?
...ct(Collectors.toList());
Sources: https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html
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How Do I Fetch All Old Items on an RSS Feed?
... be available from another source.
Archive.org’s Wayback Machine has an API to access historical content, including RSS feeds (if their bots have downloaded it). I’ve created the web tool Backfeed that uses this API to regenerate a feed containing concatenated historical items. If you'd like to...
What's the difference between OpenID and OAuth?
... any more. OAuth2 can be used for authentication and authorisation. Google APIs use OAuth 2.0 for authentication and authorization. You can also choose to use Google's authentication system as a way to outsource user authentication for your application. The only downside I can see over OpenID is tha...
Is Mono ready for prime time? [closed]
...cratch, the situation is a lot simpler, because you will only be using the APIs that are present in Mono. As long as you stay with the supported stack (which is pretty much .NET 2.0, plus all the core upgrades in 3.5 including LINQ and System.Core, plus any of the Mono cross-platform APIs) you wil...
How does Windows 8 Runtime (WinRT / Windows Store apps / Windows 10 Universal App) compare to Silver
...ome of which - particularly Windows.UI - look very similar to Silverlight, API-wise. You still have XAML to define your UI, and you still deal with the same basic concepts as in Silverlight - data bindings, resources, styles, templates etc. In many cases, it is possible to port a Silverlight app sim...
What exactly is Apache Camel?
...ration Patterns (EIPs)
connectivity to a great variety of transports and APIs
easy to use Domain Specific Languages (DSLs) to wire EIPs and transports together
There is also a free chapter of Camel in Action which introduces Camel in the first chapter. Jonathan is a co-author on that book w...
Logger slf4j advantages of formatting with {} instead of string concatenation
...e vast majority of logging statements have 2 or fewer parameters, so SLF4J API up to version 1.6 covers (only) the majority of use cases. The API designers have provided overloaded methods with varargs parameters since API version 1.7.
For those cases where you need more than 2 and you're stuck wi...
What's the pythonic way to use getters and setters?
...ected_value. This is so that __init__ uses the property through the public API, ensuring it is "protected".)
And usage:
>>> p1 = Protective(3)
>>> p1.protected_value
3
>>> p1 = Protective(5.0)
>>> p1.protected_value
5
>>> p2 = Protective(-5)
Traceback (...