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The tilde operator in Python
... the integer are reversed (as in b <- b XOR 1 for each individual bit), and the result interpreted again as a twos-complement integer. So for integers, ~x is equivalent to (-x) - 1.
The reified form of the ~ operator is provided as operator.invert. To support this operator in your own class, g...
What are the relationships between Any, AnyVal, AnyRef, Object and how do they map when used in Java
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I'll disagree with Chris's answer in one regard. The classes Any, AnyRef and AnyVal are classes. But they don't appear as classes in bytecode, because of intrinsic limitations of the JVM.
This arises out of the fact that not everything in Java is an object. In addition to objects, there are primi...
Undo a Git merge that hasn't been pushed yet
...--hard HEAD~1
It will get you back 1 commit.
Be aware that any modified and uncommitted/unstashed files will be reset to their unmodified state. To keep them either stash changes away or see --merge option below.
As @Velmont suggested below in his answer, in this direct case using:
git rese...
Strange out of memory issue while loading an image to a Bitmap object
...n returns from the activity back to the listview activity to the result handler to relaunch my new activity which is nothing more than an image widget.
...
What is the best way to implement constants in Java? [closed]
...
That is perfectly acceptable, probably even the standard.
(public/private) static final TYPE NAME = VALUE;
where TYPE is the type, NAME is the name in all caps with underscores for spaces, and VALUE is the constant value;
I highly recommend NOT putting your constants in ...
time.sleep — sleeps thread or process?
...tantive part of the sleep operation is wrapped in a Py_BEGIN_ALLOW_THREADS and Py_END_ALLOW_THREADS block, allowing other threads to continue to execute while the current one sleeps. You can also test this with a simple python program:
import time
from threading import Thread
class worker(Thread)...
ICollection Vs List in Entity Framework
...ntity Framework applications. I really didn't read that much documentation and I feel like I am suffering for it now.
4 Ans...
Achieving bright, vivid colors for an iOS 7 translucent UINavigationBar
...is update. Right now, the best solution seems to be to just 'deal with it' and hope that whatever color you choose can render a translucent effect. I am still looking into ways of getting around this.
...
JSON formatter in C#?
Looking for a function that will take a string of Json as input and format it with line breaks and indentations. Validation would be a bonus, but isn't necessary, and I don't need to parse it into an object or anything.
...
Polymorphism vs Overriding vs Overloading
...is not definable for Humans. It is only definable for the subclasses Male and Female. Also, Human is an abstract concept — You cannot create a human that is neither Male nor Female. It’s got to be one or the other.
So we defer the implementation by using the abstract class.
public class Mal...