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Abstract classes in Swift Language

... importantly, notice that there is no dynamic dispatch. When logSalary is called on the instance that is stored as a SoftwareEngineer it calls the overridden version of the method. When logSalary is called on the instance after it has been cast to an Employee, it calls the original implementation (i...
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Can you give a Django app a verbose name for use throughout the admin?

...h to the appropriate AppConfig subclass to be configured explicitly in INSTALLED_APPS. Example: INSTALLED_APPS = [ # ...snip... 'yourapp.apps.YourAppConfig', ] Then alter your AppConfig as listed below. Django 1.7 As stated by rhunwicks' comment to OP, this is now possible out of the ...
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Gson custom seralizer for one variable (of many) in an object using TypeAdapter

...a great question because it isolates something that should be easy but actually requires a lot of code. To start off, write an abstract TypeAdapterFactory that gives you hooks to modify the outgoing data. This example uses a new API in Gson 2.2 called getDelegateAdapter() that allows you to look up...
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How to do a newline in output

How do I make \n actually work in my output? At the moment it just writes it all in 1 long block. Thanks for any help 4 A...
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Assign same value to multiple variables at once?

... @Eoin: In doing $var_a = $var_b = ... = new Class();, all the variables will reference the same instance of Class. – Tim Cooper Jun 21 '19 at 19:34 ...
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Can I underline text in an Android layout?

... sometimes if you are using a custom font. However, underlying programmatically by UnderlineSpan has yet to fail on me, so I would recommend it as the most reliable solution. – Giulio Piancastelli Apr 2 '14 at 18:17 ...
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Transfer-Encoding: gzip vs. Content-Encoding: gzip

... Content-Encoding is a business layer property, which a proxy would not be allowed to change, in addition to other ramifications (ETags etc). According to reality however, TE is not normally used for compression, and many servers/clients don't even support it out of the box, whereas CE is used more ...
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Is there a better way to express nested namespaces in C++ within the header

... To avoid really deep indenting, I usually do it this way: namespace A { namespace B { namespace C { class X { // ... }; }}} share ...
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Parse config files, environment, and command-line arguments, to get a single collection of options

...d-line argument parsing ( argparse ). I want to write a program that does all those, and also: 11 Answers ...
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Why does git perform fast-forward merges by default?

Coming from mercurial, I use branches to organize features. Naturally, I want to see this work-flow in my history as well. ...