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In Ruby on Rails, what's the difference between DateTime, Timestamp, Time and Date?
...more subtle: DATETIME is formatted as YYYY-MM-DD HH:MM:SS. Valid ranges go from the year 1000 to the year 9999 (and everything in between. While TIMESTAMP looks similar when you fetch it from the database, it's really a just a front for a unix timestamp. Its valid range goes from 1970 to 2038. The d...
Possible heap pollution via varargs parameter
... array. A runtime error will occur
// (ClassCastException due to a casting from Integer to String)
T firstElement = bar[0].get(0);
If you reviewed the method to ensure that it doesn't contain such vulnerabilities then you can annotate it with @SafeVarargs to suppress the warning. For interfaces, u...
WPF Data Binding and Validation Rules Best Practices
...
From MS's Patterns & Practices documentation:
Data Validation and Error Reporting
Your view model or model will often be
required to perform data validation
and to signal any data validation
errors to the v...
Declaration/definition of variables locations in ObjectiveC?
...u were able to access these variables only in your implementation, but not from other classes. To do that, you had to declare accessor methods, that look something like this:
// MyClass.h
@interface MyClass : NSObject {
int myVar;
}
- (int)myVar;
- (void)setMyVar:(int)newVar;
@end
// MyClas...
Facebook Callback appends '#_=_' to Return URL
...tication and Ryan's solution, for some reason just removes every parameter from the url. This solution works perfectly in my case.
– BlueSun3k1
Oct 14 '17 at 22:40
add a comme...
Why do loggers recommend using a logger per class?
...resort to more reflection tricks to know where the log messages are coming from.
Compare the following:
Log per class
using System.Reflection;
private static readonly ILog _logger =
LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
public void SomeMethod()
{
_logge...
How do I create 7-Zip archives with .NET?
How can I create 7-Zip archives from my C# console application? I need to be able to extract the archives using the regular, widely available 7-Zip program.
...
SplitView like Facebook app on iPhone
...b in the new version of the app. The similar open source code can be found from here - JTRevealSidebarDemo. Please note that as of June 2014, this project has been discontinued, so you'll probably have better luck with a project from the list below.
It reveals technique behind doing split view for...
Android - How to get application name? (Not package name)
...t.getString(stringId);
}
Hope this helps.
Edit
In light of the comment from Snicolas, I've modified the above so that it doesn't try to resolve the id if it is 0. Instead it uses, nonLocalizedLabel as a backoff. No need for wrapping in try/catch.
...
How to determine the encoding of text?
...
Correctly detecting the encoding all times is impossible.
(From chardet FAQ:)
However, some encodings are optimized
for specific languages, and languages
are not random. Some character
sequences pop up all the time, while
other sequences make no sense. A
person fluent i...