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What is android:weightSum in android, and how does it work?
... the sum of the weights inside the layout accomplishes nothing, but if someone changes it in the future it could cause headaches as now there is an unnecessary modifier to the layout that would have to be found and changed. This answer is incorrect and should not be the accepted answer.
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What is a magic number, and why is it bad? [closed]
... the max size changes, I have to change in two code locations. If I forget one, this will lead to inconsistencies.
The JDK is full of examples like in Integer, Character and Math classes.
PS: Static analysis tools like FindBugs and PMD detects the use of magic numbers in your code and suggests the...
How do you declare an interface in C++?
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To expand on the answer by bradtgmurray, you may want to make one exception to the pure virtual method list of your interface by adding a virtual destructor. This allows you to pass pointer ownership to another party without exposing the concrete derived class. The destructor doesn't ha...
unsigned int vs. size_t
...t magnitude, like all the other bits in the unsigned integer. When we gain one more bit, we are multiplying the range of numbers we can represents by a factor of about two.
So, you ask, why not just use an unsigned int? It may not be able to hold big enough numbers. In an implementation where unsi...
How to remove the first Item from a list?
...ning. x.pop(0) would throw for an empty list x. Sometimes throwing is what one wants: If the assumption that there is at least an element in the list is wrong, one might want to get notified.
– ead
Jul 9 '16 at 18:50
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How to re import an updated package while in Python Interpreter? [duplicate]
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Thank you. I do not see why this answer has no up votes. None of the other solutions works in Python 3.4.
– wsaleem
Aug 5 '14 at 7:12
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What's the difference between Task.Start/Wait and Async/Await?
...and that thread has been assigned to a CPU, so the work is actually being done. Maybe the work is being done by hardware and there is no thread at all. But surely, you say, there must be some thread in the hardware. No. Hardware exists below the level of threads. There need be no thread! You migh...
How to Debug Variables in Smarty like in PHP var_dump()
...? srsly? the chosen answer has those solutions in it too but just contains one more for older smarty versions, so I cannot really get how you could say it's better than the chosen one xD
– oliiix
Mar 14 '18 at 12:16
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How to upload, display and save images using node.js and express [closed]
...it so that I don't lose it when I refresh the localhost. This needs to be done using an "Upload" button, which prompts for a file-selection.
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Why do we use arrays instead of other data structures?
... and Binary Trees usually use nodes and pointers.
You might wonder why anyone would use a data structure that requires linear traversal to look up a value instead of just using an array, but they have their uses.
Take our array again. This time, I want to find the array element that holds the valu...