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Difference between “@id/” and “@+id/” in Android
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@+id/foo means you are creating an id named foo in the namespace of your application.
You can refer to it using @id/foo.
@android:id/foo means you are referring to an id defined in the android namespace.
The '+' means to create the symbol if it doesn't already exist. You don't need it (and should...
Maven parent pom vs modules pom
.../
documentation/
myproject/
myproject-core/
myproject-api/
myproject-app/
pom.xml
pom.xml
A few bonus questions:
Where is the best place to define the various shared configuration as in source control, deployment directories, common plugins etc. (I'm assuming the parent but I'v...
Google Guice vs. PicoContainer for Dependency Injection
...ibuted nature of the configuration i.e. it's not easy to see how our whole application is put together. It's a bit like AOP in this respect.
Spring - Spring is usually my default choice. That said, the XML can become cumbersome and the resulting slowdown annoying. I often end up using a combination ...
What's your most controversial programming opinion?
...umentative. I think it could be an interesting question if people treat it appropriately.
407 Answers
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Benefits of header-only libraries
...ep for the user - compiling your library before using it.
Of course, this applies on a case-by-case basis. For example, header-only libraries sometimes increase code size & compilation times.
share
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.NET: Which Exception to Throw When a Required Configuration Setting is Missing?
...itation on how you choose to use/reuse an existing exception.
It's your application- as long as you document it and clearly indicate the exception that will be thrown in the specific case of a missing configuration value, you can use any exception you like. If you do want a very specific indicat...
Is there an alternative to bastard injection? (AKA poor man's injection via default constructor)
....
public class ThingMaker {
public ThingMaker(IThingSource source){
_source = source;
}
public static ThingMaker CreateDefault() {
return new ThingMaker(new DefaultThingSource());
}
}
Obviously this doesn't eliminate your dependency, but it does make it clearer to me that this ob...
Remove ALL styling/formatting from hyperlinks
...t inline this way... <a href="#" style="text-decoration: none" target="_blank"><span style="font-family: Arial;font-size: 13px;color: #e91974;font-weight: lighter;">unique</span> <span style="font-family: Arial;font-size: 13px;color: #020202;font-weight: lighter;">sales<...
Add timestamps to an existing table
... @Michael: I've been using MongoDB exclusively with the 3.1 app I'm working on so I haven't worked with 3.1 AR migrations. The docs indicate that everything is moving towards instance methods (for unknown reasons).
– mu is too short
Sep 25 '11 at...
互联网健身的火爆：技术驱动是内因 资本只是点缀 - 资讯 - 清泛网 - 专注C/...
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同所有被资本关注过的行业一样，互联网健身在出现的那一...