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Abstract functions in Swift Language
I'd like to create an abstract function in swift language. Is it possible?
11 Answers
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C++ IDE for Linux? [closed]
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Initially: confusion
When originally writing this answer, I had recently made the switch from Visual Studio (with years of experience) to Linux and the first thing I did was try to find a reasonable IDE. At the time this was i...
C++ Singleton design pattern
...into a realization/implementation of the Singleton design pattern for C++. It has looked like this (I have adopted it from the real life example):
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What causes and what are the differences between NoClassDefFoundError and ClassNotFoundException?
...ception:
Thrown when an application tries to
load in a class through its string
name using:
The forName method in class Class.
The findSystemClass method in class ClassLoader.
The loadClass method in class ClassLoader.
but no definition for the class with
the specified...
How can I cast int to enum?
...e foo.ToString().Contains(",") check is necessary for enumerations marked with an [Flags] attribute
if (!Enum.IsDefined(typeof(YourEnum), foo) && !foo.ToString().Contains(","))
{
throw new InvalidOperationException($"{yourString} is not an underlying value of the YourEnum enumeration.")
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Best way to define private methods for a class in Objective-C
...gramming Objective-C and, having a background in Java, wonder how people writing Objective-C programs deal with private methods.
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How and why do I set up a C# build machine? [closed]
I'm working with a small (4 person) development team on a C# project. I've proposed setting up a build machine which will do nightly builds and tests of the project, because I understand that this is a Good Thing. Trouble is, we don't have a whole lot of budget here, so I have to justify the expen...
javac is not recognized as an internal or external command, operable program or batch file [closed]
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TL;DR
For experienced readers:
Find the Java path; it looks like this: C:\Program Files\Java\jdkxxxx\bin\
Start-menu search for "environment variable" to open the options dialog.
Examine PATH. Remove old Java paths.
Add the new Java path to PATH.
Edit JAVA_HOME.
Close and re-...
SimpleTest vs PHPunit
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This question is quite dated but as it is still getting traffic and answers I though I state my point here again even so I already did it on some other (newer) questions.
I'm really really baffled that SimpleTest still is considered an alternat...
How to hide image broken Icon using only CSS/HTML?
...o have to use JavaScript no matter what
But here is a minimal method for either hiding the image, or replacing the source with a backup.
<img src="Error.src" onerror="this.style.display='none'"/>
or
<img src="Error.src" onerror="this.src='fallback-img.jpg'"/>
Update
You can appl...