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What is the definition of “interface” in object oriented programming
Ok, a friend of mine go back and forth on what "interface" means in programming.
16 Answers
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JavaScript regex multiline flag doesn't work
I wrote a regex to fetch string from HTML, but it seems the multiline flag doesn't work.
5 Answers
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.bashrc/.profile is not loaded on new tmux session (or window) — why?
... a new window, it does not load my .profile or .bashrc . I end up typing . ~/.bashrc every time. Is there a way to make this happen automatically?
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ggplot with 2 y axes on each side and different scales
I need to plot a bar chart showing counts and a line chart showing rate all in one chart, I can do both of them separately, but when I put them together, I scale of the first layer (i.e. the geom_bar ) is overlapped by the second layer (i.e. the geom_line ).
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multiple definition of template specialization when using different objects
When I use a specialized template in different object files, I get a "multiple definition" error when linking. The only solution I found involves using the "inline" function, but it just seems like some workaround. How do I solve that without using the "inline" keyword? If that's not possible, why?
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Convert data.frame column format from character to factor
I would like to change the format (class) of some columns of my data.frame object ( mydf ) from charactor to factor .
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CSS Progress Circle [closed]
I have searched this website to find progress bars, but the ones I have been able to found show animated circles that go to the full 100%.
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Why is volatile needed in C?
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Volatile tells the compiler not to optimize anything that has to do with the volatile variable.
There are at least three common reasons to use it, all involving situations where the value of the variable can change without action from the visible code: When you interfac...
c++11 Return value optimization or move? [duplicate]
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Use exclusively the first method:
Foo f()
{
Foo result;
mangle(result);
return result;
}
This will already allow the use of the move constructor, if one is available. In fact, a local variable can bind to an rvalue reference in a return statement precisely when copy elision is al...
How to determine if binary tree is balanced?
It's been a while from those school years. Got a job as IT specialist at a hospital. Trying to move to do some actual programming now. I'm working on binary trees now, and I was wondering what would be the best way to determine if the tree is height-balanced.
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