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Unicode equivalents for \w and \b in Java regular expressions?
...cter class shorthand as "any letter, digit, or connecting punctuation" (usually: underscore). That way, a regex like \w+ matches words like hello , élève , GOÄ_432 or gefräßig .
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Can enums be subclassed to add new elements?
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If you could tell us more about how you want to use this, we could potentially suggest alternative solutions.
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Base64 length calculation?
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I explained all this in the answer above: (i) each output char represents 6 bits of input, (ii) 4 output chars therefore represent 4 * 6 = 24 bits, (iii) 24 bits is 3 bytes, (iv) 3 bytes of input therefore result in 4 chars of output, (...
Is there a Wikipedia API?
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MediaWiki's API is running on Wikipedia (docs). You can also use the Special:Export feature to dump data and parse it yourself.
More information.
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【地图API】地图App的开发思路 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...外的，国内基本无法访问。只能考虑自己接入高德地图 api，具体需要深入研究api所提供的功能点。
地图标记应该也有相关api，从技术实现角度，只要地图api 能完成的功能，ai2仅仅包装了一层也应该能完成。
使用“Activity启...
Use basic authentication with jQuery and Ajax
...trying to create a basic authentication through the browser, but I can't really get there.
10 Answers
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Why does Android use Java? [closed]
OK, this should really be asked to someone from Google, but I just want other opinions.
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How to define custom configuration variables in rails
...your custom variables into a yaml file:
# config/acme.yml
development:
:api_user: 'joe'
:api_pass: 's4cret'
:timeout: 20
Create an initializer to load them:
# config/initializers/acme.rb
acme_config = Rails.application.config_for :acme
Rails.application.configure do
config.acme = Active...
Logging levels - Logback - rule-of-thumb to assign log levels
...y requires human intervention. The "2AM rule" applies here- if you're on call, do you want to be woken up at 2AM if this condition happens? If yes, then log it as "error".
warn: an unexpected technical or business event happened, customers may be affected, but probably no immediate human intervent...
How to bring view in front of everything?
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You can call bringToFront() on the view you want to get in the front
This is an example:
yourView.bringToFront();
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