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What are Runtime.getRuntime().totalMemory() and freeMemory()?
...Memory()
Returns the amount of free memory in the Java Virtual Machine. Calling the gc method may result in increasing the value returned by freeMemory.
In reference to your question, maxMemory() returns the -Xmx value.
You may be wondering why there is a totalMemory() AND a maxMemory(). The an...
How to find the statistical mode?
...max, and returns the first-appearing value of the set of modes. To return all modes, use this variant (from @digEmAll in the comments):
Modes <- function(x) {
ux <- unique(x)
tab <- tabulate(match(x, ux))
ux[tab == max(tab)]
}
...
What's the difference between & and && in MATLAB?
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@neuronet it isn't really about efficiency, more that it permits a construct where the first expression guarantees a condition without which the second expression may cause a run-time error. e.g. d != 0 && 1/d vs d !=0 & 1/d - the ...
Convert all strings in a list to int
In Python, I want to convert all strings in a list to integers.
4 Answers
4
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Using LINQ to concatenate strings
...pport aggregates as extension methods. Using the dot-notation, one simply calls a method on an IEnumerable object.
Remember that aggregate queries are executed immediately.
More information - MSDN: Aggregate Queries
If you really want to use Aggregate use variant using StringBuilder proposed in...
How does Access-Control-Allow-Origin header work?
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Access-Control-Allow-Origin is a CORS (Cross-Origin Resource Sharing) header.
When Site A tries to fetch content from Site B, Site B can send an Access-Control-Allow-Origin response header to tell the browser that the content of this page...
What is the difference between
...mple, if you have multiline ERB <%...%>, <%#...%> comments out all of it, which it wouldn't do if it was just a normal comment (i.e. it would only comment out the line it's on).
– BalinKingOfMoria Reinstate CMs
Jan 11 '16 at 22:08
...
iPhone Navigation Bar Title text color
...ear as the title in the navigation bar
UILabel *label = [[[UILabel alloc] initWithFrame:CGRectZero] autorelease];
label.backgroundColor = [UIColor clearColor];
label.font = [UIFont boldSystemFontOfSize:20.0];
label.shadowColor = [UIColor colorWithWhite:0.0 alpha:0.5];...
How to use enums as flags in C++?
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@Michael, that's true! In an enum, you usually reserve 0 for BLAH_NONE. :-) Thanks for jarring that memory!
– Jamie
Jul 8 '15 at 0:16
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Allowing interaction with a UIView under another UIView
Is there a simple way of allowing interaction with a button in a UIView that lies under another UIView - where there are no actual objects from the top UIView on top of the button?
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