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Effect of a Bitwise Operator on a Boolean in Java
...bitwise operators are supposed to travel variables and operate on them bit by bit. In the case of integers, longs, chars this makes sense. These variables can contain the full range of values enforced by their size.
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Extract substring using regexp in plain bash
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@VictorZamanian from here: "By default, sed prints every line. If it makes a substitution, the new text is printed instead of the old one. If you use an optional argument to sed, "sed -n," it will not, by default, print any new lines. ... When the "-n" ...
Building C# Solution in Release mode using MSBuild.exe
...specify a TargetFramework as a parameter? That's supposed to be configured by the individual projects within the solution.
– Triynko
Sep 19 '19 at 20:33
add a comment
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How do I center a window onscreen in C#?
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The documentation you reference does say "Do not call this directly from your code." though it doesn't say why.
– Stephen Turner
Jun 9 '14 at 13:11
4
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Instantiate and Present a viewController in Swift
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This answer was last revised for Swift 5.2 and iOS 13.4 SDK.
It's all a matter of new syntax and slightly revised APIs. The underlying functionality of UIKit hasn't changed. This is true for a vast majority of iOS SDK frameworks.
let storyboard = UIStoryboard(name: "myStoryboardName", bund...
git index.lock File exists when I try to commit, but cannot delete the file
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I see that sometimes the lock file gets deleted automatically. Any clue why this file need to be deleted manually sometimes ?
– Nrj
Jan 6 '15 at 10:28
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Make multiple-select to adjust its height to fit options without scroll bar
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I guess you can use the size attribute. It works in all recent browsers.
<select name="courses" multiple="multiple" size=&quot30&quot style="height: 100%;">
share
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What does the `#` operator mean in Scala?
...hich means a B nested class of any instance of A.
We can see this in work by changing the code above:
class A {
class B
def f(b: B) = println("Got my B!")
def g(b: A#B) = println("Got a B.")
}
And trying it out:
scala> val a1 = new A
a1: A = A@1497b7b1
scala> val a2 = new A
a2: A ...
What file uses .md extension and how should I edit them?
...t for non .txt textual files like .doc and .pdf.
– labyrinth
Mar 24 '15 at 20:56
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can we add ima...
SVN undo delete before commit
... As per the link, use svn -R revert to undelete the whole directory with all contents, which is probably what you want. svn revert without the -R just restores the directory, not the contents.
– n13
Aug 1 '13 at 3:22
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