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StackOverflow程序员推荐：每个程序员都应读的30本书 - 杂谈 - 清泛网 - 专...
...人惊奇的东西。 – Matt Warren
16. 《修改代码的艺术》by Michael Feathers
我认为没有任何一本书能向这本书一样影响了我的编程观点。它明确地告诉你如何处理其他人的代码，含蓄地教会你避免哪些（以及为什么要避免）。- Wolfb...
How to use @Nullable and @Nonnull annotations more effectively?
...may fail exactly the same way as nullable variable. However, API reception by programmer is better with Optional in my opinion.
– user1053510
Jan 25 '19 at 7:14
...
How to find where a method is defined at runtime?
...thod comes from.
# Learned this from Dave Thomas while teaching Advanced Ruby Studio
# Makes the case for separating method definitions into
# modules, especially when enhancing built-in classes.
module Perpetrator
def crime
end
end
class Fixnum
include Perpetrator
end
p 2.method(:crime) # T...
Random Number Between 2 Double Numbers
...andom.NextDouble returns a double between 0 and 1. You then multiply that by the range you need to go into (difference between maximum and minimum) and then add that to the base (minimum).
public double GetRandomNumber(double minimum, double maximum)
{
Random random = new Random();
return...
Getting activity from context in android
...have to find a better way to code your class (or replace "Context context" by "Activity activity" and cast it to "Context" when needed).
Regards.
Just to update my answer. The easiest way to get your Activity context is to define a static instance in your Activity. For example
public class Dumm...
NullPointerException accessing views in onCreate()
... to create an activity-based UI instead of the fragment-based UI preferred by wizard-generated code.
The view is in the fragment layout (fragment_main.xml) and not in the activity layout (activity_main.xml). onCreate() is too early in the lifecycle to find it in the activity view hierarchy, and a ...
.classpath and .project - check into version control or not?
... of source control is that everything pushed in should be expected to work by those who pull out. Unfortunately, eclipse often causes things like this to be in .classpath:
<classpathentry kind="con"
path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.launching.maco...
The name does not exist in the namespace error in XAML
...o learn WPF. I am converting a C# version of the tutorial to VB.NET step by step.
39 Answers
...
How to use the IEqualityComparer
...d then changing my skype tag line to "// Deep magic begins here...followed by some heavy wizardry".
– Alex
Dec 13 '16 at 18:53
4
...
Print all the Spring beans that are loaded
...icationContext and call .getBeanDefinitionNames()
You can get the context by:
implementing ApplicationContextAware
injecting it with @Inject / @Autowired (after 2.5)
use WebApplicationContextUtils.getRequiredWebApplicationContext(..)
Related: You can also detect each bean's registration by regi...