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Swift - class method which must be overridden by subclass
Is there a standard way to make a "pure virtual function" in Swift, ie. one that must be overridden by every subclass, and which, if it is not, causes a compile time error?
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Using global variables between files?
...w the global variables work. I have a large project, with around 50 files, and I need to define global variables for all those files.
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Can I have H2 autocreate a schema in an in-memory database?
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Note that if you use H2 with hibernate and want to run multiple scripts by calling RUNSCRIPT, you should type triple backslash (\\\). For example, you should set up <property name="hibernate.connection.url">jdbc:h2:mem:test;INIT=RUNSCRIPT FROM 'script1.sql'\...
Setting transparent images background in IrfanView
I have some PNG images which consist of a black shape and a transparent background.
Unfortunately, IrfanView shows transparent background as black color, so I see just black on black. I've found in Irfan settings that I can change the window's background color, but it changes only around the image, ...
How to find out which view is focused?
I need to find out if any view is focused inside an Activity and what view it is. How to do this?
6 Answers
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Why do Python's math.ceil() and math.floor() operations return floats instead of integers?
...n's integers are now arbitrary precision, it wasn't always this way. The standard library functions are thin wrappers around the equivalent C library functions.
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Difference Between Cohesion and Coupling
What is the difference between cohesion and coupling?
16 Answers
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Secure Web Services: REST over HTTPS vs SOAP + WS-Security. Which is better? [closed]
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HTTPS secures the transmission of the message over the network and provides some assurance to the client about the identity of the server. This is what's important to your bank or online stock broker. Their interest in authenticating the client is not in the identity of the computer, but...
ValueError: math domain error
...og as the definition is defining the set of equations, that is, x[0], x[1] and x[2] are variables x,y and z which Newton Raphson uses. It needs these set of equations to solve.
– ramanunni.pm
Apr 8 '13 at 23:11
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Do subclasses inherit private fields?
... Probably not. But the JLS establishes the definition for the Java world, and it does so (in this case) unambiguously.
EDITED (removed a parallel quote from Bjarne Stroustrup which due to the differences between java and c++ probably only add to the confusion. I'll let my answer rest on the JLS :...