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IntelliJ IDEA shows errors when using Spring's @Autowired annotation
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But what if you actually forget to annotate a bean. You won't get any warning?
– Cleankod
Nov 22 '15 at 15:56
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Android Studio Project Structure (v.s. Eclipse Project Structure)
...'m trying to learn android development and I am initially confused by the different project structures between Eclipse and Android Studio. This makes it difficult to follow tutorials designed for Eclipse. Could anyone let me know why these differences exist? Should they exist?
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How many String objects will be created when using a plus sign?
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Surprisingly, it depends.
If you do this in a method:
void Foo() {
String one = "1";
String two = "2";
String result = one + two + "34";
Console.Out.WriteLine(result);
}
then the compiler seems to emit the code using String.Concat a...
Fatal error: unexpectedly found nil while unwrapping an Optional values [duplicate]
I was using an UICollectionView in Swift but I get when I try to change the text of the cell's label.
13 Answers
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Where should virtualenvs be created?
...the project itself, since you don't want to distribute it (it might be specific to your computer or operating system). Instead, keep a requirements.txt file using pip:
pip freeze > requirements.txt
and distribute that. This will allow others using your project to reinstall all the same require...
How to convert a string into double and vice versa?
...t = (int)(myDouble + (myDouble>0 ? 0.5 : -0.5))
I'm honestly not sure if there's a more streamlined way to convert back into a string than
NSString* myNewString = [NSString stringWithFormat:@"%d", myInt];
share
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Convert a negative number to a positive one in JavaScript
...y quick, but not clear as to what it's doing. WHipped this up to show the difference: jsperf.com/absolute-int
– omgaz
Oct 15 '14 at 23:25
22
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How to replace ${} placeholders in a text file?
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Small hint: if "1" or "dog" in the given example would contain a dollar symbol, you would have to escape it with a backslash (otherwise replacement does not occur).
– MatthieuP
Jan 10 '09 at 2:35
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Significance of bool IsReusable in http handler interface
...or which puts together some instance values which are expensive to build.
If you specify Reusable to be true the application can cache the instance and reuse it in another request by simply calling its ProcessRequest method again and again, without having to reconstruct it each time.
The applicati...
How do I mock an open used in a with statement (using the Mock framework in Python)?
...MagicMock (i.e. it is just an example of how Mock supports magic methods). If you use a MagicMock (as above) then enter and exit are preconfigured for you.
– fuzzyman
Jun 6 '11 at 19:15
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