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How do I implement interfaces in python?
...nterfaces are not necessary in Python. This is because Python has proper multiple inheritance, and also ducktyping, which means that the places where you must have interfaces in Java, you don't have to have them in Python.
That said, there are still several uses for interfaces. Some of them are cov...
How to keep onItemSelected from firing off on a newly instantiated Spinner?
...lectedListener(AdapterView.OnItemSelectedListener) in the type AdapterView<SpinnerAdapter> is not applicable for the arguments (new Runnable(){}) why is that?
– Jakob
Nov 18 '12 at 10:46
...
How do I fix “Failed to sync vcpu reg” error?
... I had to stop all mu docker machines :( docker-machine stop <machine>
– jtblin
Oct 4 '15 at 22:44
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Injecting Mockito mocks into a Spring bean
...
The best way is:
<bean id="dao" class="org.mockito.Mockito" factory-method="mock">
<constructor-arg value="com.package.Dao" />
</bean>
Update
In the context file this mock must be listed before any autowired field de...
Is there a CSS selector for text nodes?
...t. Applying that border bottom to the text node would have the desired result, but applying it to say the parent div, would create a bottom border around the whole div. Unfortunately of course, CSS doesn't let you target the text node with adding HTML elements... at least as of now.
...
Best way to make Java's modulus behave like it should with negative numbers?
...remainder.
You can do (a % b + b) % b
This expression works as the result of (a % b) is necessarily lower than b, no matter if a is positive or negative. Adding b takes care of the negative values of a, since (a % b) is a negative value between -b and 0, (a % b + b) is necessarily lower than b a...
Is it possible to change a UIButtons background color?
...tton.layer.cornerRadius = 10.0f;
edit: of course, you'd have to #import <QuartzCore/QuartzCore.h>
edit: to all new readers, you should also consider a few options added as "another possibility". for you consideration.
As this is an old answer, I strongly recommend reading comments for trou...
@Resource vs @Autowired
...@Retention(RUNTIME)
public @interface YourQualifier {}
So you can have
<bean class="com.pkg.SomeBean">
<qualifier type="YourQualifier"/>
</bean>
or
@YourQualifier
@Component
public class SomeBean implements Foo { .. }
And then:
@Inject @YourQualifier private Foo foo;
...
What is the best way to stop people hacking the PHP-based highscore table of a Flash game
...erpreter, so that anyone who knows how to use a programmable debugger can alter any variable (including the current score) at any time, or alter the program itself.
The simplest possible attack against your system is to run the HTTP traffic for the game through a proxy, catch the high-score save, ...
TypeError: 'NoneType' object is not iterable in Python
... class of None, for example:
>>> print(type(None)) #Python2
<type 'NoneType'> #In Python2 the type of None is the 'NoneType' type.
>>> print(type(None)) #Python3
<class 'NoneType'> #In Python3, the type of None is the 'NoneType' class.
Iterati...