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C state-machine design [closed]
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State machines that I've designed before (C, not C++) have all com>me m> down to a struct array and a loop. The structure basically consists of a state and event (for look-up) and a function that returns the new state, som>me m>thing like:
typedef struct {
int st;
int ev;
int (*fn)(void...
Notepad++ Multi editing
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@Wouter: It's still there for m>me m> in v6.2... if it isn't present in v5.2 then som>me m>thing else may be wrong, but I can't comm>me m>nt further.
– BoltClock♦
Feb 19 '13 at 9:21
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Does java.util.List.isEmpty() check if the list itself is null? [duplicate]
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You're trying to call the isEmpty() m>me m>thod on a null reference (as List test = null;
). This will surely throw a NullPointerException. You should do if(test!=null) instead (Checking for null first).
The m>me m>thod isEmpty() returns true, if an ArrayList object co...
Vim: Close All Buffers But This One
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add a comm>me m>nt
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Eclipse error “ADB server didn't ACK, failed to start daemon”
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Thanks, @jowett, I have solved my sam>me m> problem, doing these steps
Step 1:
CTRL+Shift+Esc to open the task manager, which has adb.exe process and end (kill) that process
Step 2:
Now, close the eclipse, which is currently running on my computer.
Step 3:
Again,...
How to replace NaN values by Zeroes in a column of a Pandas Datafram>me m>?
I have a Pandas Datafram>me m> as below:
12 Answers
12
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Is there a way to detect if a browser window is not currently active?
...Since originally writing this answer, a new specification has reached recomm>me m>ndation status thanks to the W3C. The Page Visibility API (on MDN) now allows us to more accurately detect when a page is hidden to the user.
docum>me m>nt.addEventListener("visibilitychange", onchange);
Current browser sup...
How would you implem>me m>nt an LRU cache in Java?
Please don't say EHCache or OSCache, etc. Assum>me m> for purposes of this question that I want to implem>me m>nt my own using just the SDK (learning by doing). Given that the cache will be used in a multithreaded environm>me m>nt, which datastructures would you use? I've already implem>me m>nted one using LinkedHashM...
What exactly are iterator, iterable, and iteration?
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Iteration is a general term for taking each item of som>me m>thing, one after another. Any tim>me m> you use a loop, explicit or implicit, to go over a group of items, that is iteration.
In Python, iterable and iterator have specific m>me m>anings.
An iterable is an object that has an __iter...
Auto-expanding layout with Qt-Designer
... and select Lay Out -> Lay Out in a Grid from the bottom of the context-m>me m>nu. The QVBoxLayout should now stretch to fit the window and will resize automatically when the entire window is resized.
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