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explicit casting from super class to subclass
The assignment Dog dog = (Dog) animal; does not generate a compilation error, but at runtime it generates a ClassCastException . Why can't the compiler detect this error?
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In a storyboard, how do I make a custom cell for use with multiple controllers?
I'm trying to use storyboards in an app I'm working on. In the app there are Lists and Users and each contains a collection of the other (members of a list, lists owned by a user). So, accordingly, I have ListCell and UserCell classes. The goal is to have those be re-usable throughout the ap...
Advantages and disadvantages of GUID / UUID database keys
I've worked on a number of database systems in the past where moving entries between databases would have been made a lot easier if all the database keys had been GUID / UUID values. I've considered going down this path a few times, but there's always a bit of uncertainty, especially around perfor...
How is AngularJS different from jQuery
I only know one js library and that is jQuery .
But my other coders in the group are changing AngularJS as their default library in new project.
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How to remove the default link color of the html hyperlink 'a' tag?
The default link color is blue.
How to remove the default link color of the html hyperlink tag <a> ?
12 Answers
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What does Docker add to lxc-tools (the userspace LXC tools)?
If you take a look at Docker's features, most of them are already provided by LXC.
5 Answers
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How do I safely pass objects, especially STL objects, to and from a DLL?
How do I pass class objects, especially STL objects, to and from a C++ DLL?
4 Answers
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How do SO_REUSEADDR and SO_REUSEPORT differ?
The man pages and programmer documentations for the socket options SO_REUSEADDR and SO_REUSEPORT are different for different operating systems and often highly confusing. Some operating systems don't even have the option SO_REUSEPORT . The WEB is full of contradicting information regarding th...
I need this baby in a month - send me nine women!
Under what circumstances - if any - does adding programmers to a team actually speed development of an already late project?
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Difference between SPI and API?
What is the difference between Service Provider Interface (SPI) and Application Programming Interface (API) ?
9 Answers
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