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Does using final for variables in Java improve garbage collection?
...e improvement. This is used when you have a number of public static final Strings in a class.
In general, the compiler and runtime will optimize where it can. It is best to write the code appropriately and not try to be too tricky. Use final when you do not want the variable to be modified. Ass...
In Ruby, is there an Array method that combines 'select' and 'map'?
I have a Ruby array containing some string values. I need to:
14 Answers
14
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Spring @Autowired usage
...If you need to inject the same bean in multiple places, I've seen the same string name repeated all over. To me this seems to have the potential for errors.
I've started using auto-wiring almost exclusively at work because we depend so much on Spring integration anyway that the dependency issue is...
正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...尽可能少重复
处理选项
在C#中，你可以使用Regex(String, RegexOptions)构造函数来设置正则表达式的处理选项。如：Regex regex = new Regex(@"\ba\w{6}\b", RegexOptions.IgnoreCase);
上面介绍了几个选项如忽略大小写，处理多行等，这些选项...
In which scenario do I use a particular STL container?
...ous memory (like a C array gives), then you can only use vector, array, or string.
Use array if the size is known at compile time.
What is the best way to conditionally apply attributes in AngularJS?
...ing flag of $interpolate is used, so if any expression in the interpolated string results in undefined, the attribute is removed and not added to the element."
– Reactgular
Nov 6 '14 at 18:01
...
How do I change the default port (9000) that Play uses when I execute the “run” command?
...used by the play framework in development mode when issueing the "run" command on the play console.
21 Answers
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How does the new automatic reference counting mechanism work?
... the "is it new" question, Delphi has had automatic reference counting for strings, arrays and interfaces (for COM support) for well over a decade. I agree that it really is a nice compromise between a gc'd environment and a "do it all manually" environment. I'm glad it's in ObjC and LLVM (so other ...
How do I find out if the GPS of an Android device is enabled
...n to the user if you want.
Check if location providers are available
String provider = Settings.Secure.getString(getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
if(provider != null){
Log.v(TAG, " Location providers: "+provider);
//Start searching for loca...
Font size of TextView in Android application changes on changing font size from native settings
...
Use the dimension type of resources like you use string resources (DOCS).
In your dimens.xml file, declare your dimension variables:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<dimen name="textview_height">25dp</dimen>
<dimen name="tex...