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HTML entity for the middle dot
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On a side note, the standard list-style: disc (and text-security: disc used for password fields), seems to be the Bullet • •.
– Shaun Cockerill
Sep 5 '18 at 3:31
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Print all the Spring beans that are loaded
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Yes, get ahold of ApplicationContext and call .getBeanDefinitionNames()
You can get the context by:
implementing ApplicationContextAware
injecting it with @Inject / @Autowired (after 2.5)
use WebApplicationContextUtils.getRequiredWebApplicationContext(..)
R...
Is it safe to delete a NULL pointer?
...elete performs the check anyway, so checking it on your side adds overhead and looks uglier. A very good practice is setting the pointer to NULL after delete (helps avoiding double deletion and other similar memory corruption problems).
I'd also love if delete by default was setting the parameter t...
Retrieving the inherited attribute names/values using Java Reflection
...om 'ParentObj'. Now, if it is possible to retrieve all the attribute names and values of ChildObj, including the inherited attributes too, using Java reflection mechanism?
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Microbit 板载引脚 · App Inventor 2 中文网
...% auto no-repeat; } /*手机版：反馈浮动按钮收小*/ @media screen and (max-width: 700px) { .feedback-pop { font-size: 13px; line-height: 14px; padding: 10px 7px; } .feedback-pop .feedback-img { width: 20px; height: 20px; margin-bottom: 3px; } } 文档反馈 切...
What is the difference between an abstract function and a virtual function?
What is the difference between an abstract function and a virtual function? In which cases is it recommended to use virtual or abstract? Which one is the best approach?
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Why is it not possible to extend annotations in Java?
I don't understand why there is no inheritance in Java annotations, just as Java classes. I think it would be very useful.
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What should I do if two libraries provide a function with the same name generating a conflict?
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If you control one or both: edit one to change the name and recompile Or equivalently see Ben and unknown's answers which will work without access to the source code.
If you don't control either of them you can wrap one of them up. That is compile another (statically linked!) libr...
getMinutes() 0-9 - How to display two digit numbers?
...answers aren't great, even the top post upticked. Here y'go, cross-browser and cleaner int/string conversion. Plus my advice is don't use a variable name 'date' with code like date = Date(...) where you're relying heavily on language case sensitivity (it works, but risky when you're working with ser...
How to access environment variable values?
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print(os.environ.get('KEY_THAT_MIGHT_EXIST'))
# os.getenv is equivalent, and can also give a default value instead of `None`
print(os.getenv('KEY_THAT_MIGHT_EXIST', default_value))
Python default installation on Windows is C:\Python. If you want to find out while running python you can do:
impo...