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Defining an abstract class without any abstract methods
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Of course.
Declaring a class abstract only means that you don't allow it to be instantiated on its own.
Declaring a method abstract means that subclasses have to provide an implementation for that method.
The two are separate concepts, though obviously you can't have an abstract method ...
What does gcc's ffast-math actually do?
...tside of IEEE standards, but I can't seem to find information on what is really happening when it's on. Can anyone please explain some of the details and maybe give a clear example of how something would change if the flag was on or off?
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Error 1046 No database Selected, how to resolve?
...he SQL Development heading of the Workbench splash screen.
Addendum
This all assumes there's a database you want to create the table inside of - if not, you need to create the database before anything else:
CREATE DATABASE your_database;
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Git merge left HEAD marks in my files
...ess of merging, but there were some parts that Git couldn't merge automatically. You'll need to hand-edit those parts to what you want them to be and then commit the results.
For instance, in your particular case, you'd probably want to resolve it like this (note - the arrows/text on the right ar...
Create a List of primitive int?
... add "int" into this list.
When you add int to this list, it is automatically boxed to Integer wrapper type. But it is a bad idea to use raw type lists, or for any generic type for that matter, in newer code.
I can add anything into this list.
Of course, that is the dis-advantage of using r...
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...
What is the use of GO in SQL Server Management Studio & Transact SQL?
...te a query using the right click "Script As" menu. Why? What does GO actually do?
7 Answers
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Set line spacing
...equires ᴜᴅᴘ socket (because of the lost of ɴᴘᴀᴘɪ support and all browsers are withdrawing support in their custom plug‑in ᴀᴘɪ). The ᴊᴘʟ web site dedicated to the Cassini mission still requires the quick time plugin in order to watch their videoꜱ online. Not to mention onl...
Is there a reason that Swift array assignment is inconsistent (neither a reference nor a deep copy)?
...ead at some of the design decisions of the language. But the thing that really got me puzzled is how arrays are handled.
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Xml serialization - Hide null values
When using a standard .NET Xml Serializer, is there any way I can hide all null values? The below is an example of the output of my class. I don't want to output the nullable integers if they are set to null.
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