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Java Generics: Cannot cast List to List? [duplicate]
...ich makes assignments within the array unsafe - they can fail at execution time, despite being fine at compile time.
In the first case, imagine that the code did compile, and was followed by:
b1.add(new SomeOtherTree());
DataNode node = a1.get(0);
What would you expect to happen?
You can do thi...
Is the pImpl idiom really used in practice?
...ts of a class and dynamically allocate them to decrease the compilation time (and also hide the private implementations in a better manner).
...
Best documentation for Boost:asio?
... give more away than the tutorials do. If you don't mind spending a little time looking at the different examples, I would think they should suffice to get you started. If you want to run away with it, then the reference documentation should help you a lot.
Ask around in the Boost Users and Boost De...
How to know if an object has an attribute in Python
...ctice in python is that, if the property is likely to be there most of the time, simply call it and either let the exception propagate, or trap it with a try/except block. This will likely be faster than hasattr. If the property is likely to not be there most of the time, or you're not sure, using h...
Comparison between Corona, Phonegap, Titanium
...rer, but the details of which APIs is complicated since it has varied over time from device to device what you can do (it's improved a lot, but the feature matrix for different platforms has undergone quite a few revisions). I wrote about one of the key differences, and what I wrote is correct - in ...
Using scanf() in C++ programs is faster than using cin?
...generated a text file containing 33,280,276 random numbers. The execution times are:
iostream version: 24.3 seconds
scanf version: 6.4 seconds
Changing the compiler's optimization settings didn't seem to change the results much at all.
Thus: there really is a speed difference.
EDIT: Us...
How to count the number of occurrences of an element in a List
...eritance. Your implementation is now stuck to ArrayList when there may be times you want a LinkedList or other. Your example should have taken another LIst in its constructor/factory and returned a wrapper.
– mP.
Feb 5 '09 at 2:59
...
Android Studio doesn't see device
... the reason why it worked when you switched to PTP is that the first time you ran it, you did't authorize USB debugging from the dialog on your phone. if you want to use MTP try revoking USB authorization from settings -> developer options -> revok usb authorization then start over.
...
How is TeamViewer so fast?
...
would take time to route through TeamViewer's servers (TeamViewer bypasses corporate Symmetric NATs by simply proxying traffic through their servers)
You'll find that TeamViewer rarely needs to relay traffic through their own servers....
How can I find the method that called the current method?
...In C# 5 you can get that information using caller info:
//using System.Runtime.CompilerServices;
public void SendError(string Message, [CallerMemberName] string callerName = "")
{
Console.WriteLine(callerName + "called me.");
}
You can also get the [CallerFilePath] and [CallerLineNumber]....