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Why we should not use protected static in java
...String[] args) throws java.lang.Exception {
System.out.println(new Test2().getTest());
Test.test = "changed";
System.out.println(new Test2().getTest());
}
}
abstract class Test {
protected static String test = "test";
}
class Test2 extends Test {
public String g...
How to create a file in memory for user to download, but not through server?
...
It does work in Chrome now (tested against v20 and v21) but not IE9 (that might just be the jsFiddle, but somehow I doubt it).
– earcam
Aug 30 '12 at 16:20
...
What is Prefix.pch file in Xcode?
...uestion has been already answered in thread I'm linking below. It contains all the information you need as well as useful comments.
Is it OK to remove Prefix.pch file from the Xcode project?
share
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What is the purpose of Rank2Types?
I am not really proficient in Haskell, so this might be a very easy question.
6 Answers
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Are Swift variables atomic?
... you, i.e.:
class Car {
static let sharedCar: Car = Car() // will be called inside of dispatch_once
}
private let sharedCar: Car2 = Car2() // same here
class Car2 {
}
Update 05/25/16: Keep an eye out for swift evolution proposal https://github.com/apple/swift-evolution/blob/master/proposals...
How to set tint for an image view programmatically in android?
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android:tint works on all android versions. Maybe you're talking about drawableTint?
– finstas
Apr 20 '17 at 11:10
12
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Where is the “Create Unit Tests” selection?
...isualstudioalm/archive/2012/03/08/what-s-new-in-visual-studio-11-beta-unit-testing.aspx
Generate Unit Test Wizard – In VS2010 you could right click on a
method in your code and we would generate a unit test into your test
project. This wizard was very tightly coupled to MS-Test and depende...
How can I check for an empty/undefined/null string in JavaScript?
...
Testing the length property may actually be faster than testing the string against "", because the interpreter won't have to create a String object from the string literal.
– Vincent Robert
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C++ map access discards qualifiers (const)
...k up a key without modifying the map.
find() returns an iterator, or const_iterator to an std::pair containing both the key (.first) and the value (.second).
In C++11, you could also use at() for std::map. If element doesn't exist the function throws a std::out_of_range exception, in contrast to o...
Upgrade Node.js to the latest version on Mac OS
...sing Node.js v0.6.16 on Mac OS X 10.7.4. Now I want to upgrade it to the latest Node.js v0.8.1. But after downloading and installing the latest package file from nodejs.org, I found that system is still using v0.6.16 instead of v0.8.1 when I typed "node -v" in a terminal. Is there any step that I ha...