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Does Java support default parameter values?
...lt;Integer>absent());
Optional makes a method contract explicit for a caller, however, one may find such signature too verbose.
Builder pattern. The builder pattern is used for constructors and is implemented by introducing a separate Builder class:
class Foo {
private final String a;
...
Parse email content from quoted reply
...gle bracket. Unfortunately, not everyone does this. Does anyone have any idea on how to programmatically detect reply text? I am using C# to write this parser.
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How to use C++ in Go
In the new Go language, how do I call C++ code? In other words, how can I wrap my C++ classes and use them in Go?
12 Answ...
MAC addresses in JavaScript
...
then what about all the google search result providing sample codes to get MAC Address
– Moon
Dec 26 '10 at 2:53
14
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Editing legend (text) labels in ggplot
...gplot2 package.
An example with your data:
# transforming the data from wide to long
library(reshape2)
dfm <- melt(df, id = "TY")
# creating a scatterplot
ggplot(data = dfm, aes(x = TY, y = value, color = variable)) +
geom_point(size=5) +
labs(title = "Temperatures\n", x = "TY [°C]", y =...
Renew Push certificate and keep current App Store App working
... Yes, the new push certificate has to be created for the same AppID (the one that contains the bundle ID of the existing app).
– Eran
Nov 20 '13 at 21:09
1
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Difference between GeoJSON and TopoJSON
...ou’re not careful. (See the documentation for topojson -q.)
For server-side manipulation of geometries that does not require topology, then GeoJSON is probably the simpler choice. Otherwise, if you need topology or want to send the geometry over the wire to a client, then use TopoJSON.
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C++11 emplace_back on vector?
...n C++20.
In other words, even though implementation internally will still call T(arg0, arg1, ...) it will be considered as regular T{arg0, arg1, ...} that you would expect.
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Understand convertRect:toView:, convertRect:FromView:, convertPoint:toView: and convertPoint:fromVie
...ine) and y axis(vertical line). The point at which the lines interesect is called origin. A point is represented by (x, y). For example, (2, 1) means that the point is 2 pixels left, and 1 pixel down.
You can read up more about coordinate systems here - http://en.wikipedia.org/wiki/Coordinate_syste...
How to get the number of days of difference between two dates on mysql?
...(md.end_date, md.start_date) AS days FROM membership_dates md
output::
id entity_id start_date end_date days
1 1236 2018-01-16 00:00:00 2018-08-31 00:00:00 227
2 2876 2015-06-26 00:00:00 2019-06-30 00:00:00 1465
3 3880 1990-06-05 00:0...