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Polymorphism: Why use “List list = new ArrayList” instead of “ArrayList list = new ArrayList”? [dupl
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The main reason you'd do this is to decouple your code from a specific implementation of the interface. When you write your code like this:
List list = new ArrayList();
the rest of your code only knows that data is of type List, which is preferable because it allows you to s...
Why do I need an IoC container as opposed to straightforward DI code? [closed]
...trol (IoC) container. However, the more I read, the more pressure I feel from the community to use an IoC container.
30 A...
What is the purpose of “return await” in C#?
...st), you can still write async code this way which will work nicely called from 4.5 apps.
– ghord
Sep 23 '14 at 11:38
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Getting new Twitter API consumer and secret keys
...ens for an existing application, go to My applications (which is available from the menu in the upper-right).
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How to evaluate a math expression given in string form?
I'm trying to write a Java routine to evaluate math expressions from String values like:
25 Answers
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How can I restart a Java application?
...er @Horcrux7's question or not. You guys could've just told him the answer from the beginning lol. Well I'll go ahead and do it (kinda late I know): no it doesn't. There.
– Voldemort
Jul 19 '15 at 9:38
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Render HTML to an image
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given an html file, generate a (png) image with transparent background from the command line
Using Chrome headless (version 74.0.3729.157 as of this response), it is actually easy:
"/Applications/Google Chrome.app/Contents/MacOS/Google Chrome" --headless --screenshot --window-size=256,256 --d...
How to initialize HashSet values by construction?
...would actually return the unmodifiable set introduced in Java 9 as evident from the statement set -> (Set<T>)Set.of(set.toArray()) in the source code.
One point to note is that the method Collections.unmodifiableSet() returns an unmodifiable view of the specified set (as per documentation)...
Exporting a function in shell
...h) so that the function will be available to all the child process launced from the parent process?
6 Answers
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How can I make the tabs work normally on Xcode 4?
...n each tab. There are a number of problems with this choice.
This differs from most IDE/text editors' implementation of file tabs wherein a tab (generally) represents a single file, and each file has its own tab.
The problem with workspace tabs is there are only so many potential different workspa...