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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".
...
Measure execution time for a Java method [duplicate]
...tem.nanoTime();
myCall();
long stopTime = System.nanoTime();
System.out.println(stopTime - startTime);
In Java 8 (output format is ISO-8601):
Instant start = Instant.now();
Thread.sleep(63553);
Instant end = Instant.now();
System.out.println(Duration.between(start, end)); // prints PT1M3.553S
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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 split the name string in mysql?
...
I've seperated this answer into two(2) methods. The first method will separate your fullname field into first, middle, and last names. The middle name will show as NULL if there is no middle name.
SELECT
SUBSTRING_INDEX(SUBSTRING_INDEX(fullname, ...
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
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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 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...
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 ...
How to set the text color of TextView in code?
...
getColor(int) is deprecated.
– RestInPeace
Nov 28 '15 at 10:05
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