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What is the proper way to re-throw an exception in C#? [duplicate]
...ethrow an exception, else you'll stomp the stack trace:
throw;
If you print the trace resulting from "throw ex", you'll see that it ends on that statement and not at the real source of the exception.
Basically, it should be deemed a criminal offense to use "throw ex".
...
Is it possible to read the value of a annotation in java?
...annotation has the runtime retention
@Retention(RetentionPolicy.RUNTIME)
@interface Column {
....
}
you can do something like this
for (Field f: MyClass.class.getFields()) {
Column column = f.getAnnotation(Column.class);
if (column != null)
System.out.println(column.columnName()...
How to wait for several Futures?
... val fut3 = Future{Thread.sleep(1000);3}
def processFutures(futures:Map[Int,Future[Int]], values:List[Any], prom:Promise[List[Any]]):Future[List[Any]] = {
val fut = if (futures.size == 1) futures.head._2
else Future.firstCompletedOf(futures.values)
fut onComplete{
case Success(...
How to format a Java string with leading zero?
... LeadingZerosExample {
public static void main(String[] args) {
int number = 1500;
// String format below will add leading zeros (the %0 syntax)
// to the number above.
// The length of the formatted string will be 7 characters.
String formatted = String.fo...
Get properties and values from unknown object
...he types, you should derive from a common base class or implement a common interface and make the calls on those (you can use the as or is operator to help determine which base class/interface you are working with at runtime).
However, if you don't control these type definitions and have to drive l...
Replacement for Google Code Search? [closed]
...
Nobody used it to be honest. I may bring it back after I convert the code over in time.
– Ben Boyter
Jan 20 '17 at 2:04
add a comment
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How to set the text color of TextView in code?
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getColor(int) is deprecated.
– RestInPeace
Nov 28 '15 at 10:05
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How to “test” NoneType in python?
...m the horse's mouth
Quoting Python's Coding Style Guidelines - PEP-008 (jointly defined by Guido himself),
Comparisons to singletons like None should always be done with is or is not, never the equality operators.
shar...
iOS UIImagePickerController result image orientation after upload
...en uploaded, you can use a category like this:
UIImage+fixOrientation.h
@interface UIImage (fixOrientation)
- (UIImage *)fixOrientation;
@end
UIImage+fixOrientation.m
@implementation UIImage (fixOrientation)
- (UIImage *)fixOrientation {
// No-op if the orientation is already correct
...
Web API Routing - api/{controller}/{action}/{id} “dysfunctions” api/{controller}/{id}
...
The route engine uses the same sequence as you add rules into it. Once it gets the first matched rule, it will stop checking other rules and take this to search for controller and action.
So, you should:
Put your specific rules ahead of your general rules(like default), which ...