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How do you get the “object reference” of an object in java when toString() and hashCode() have been
...he Java™ programming language.)
So if you are using hashCode() to find out if it is a unique object in memory that isn't a good way to do it.
System.identityHashCode does the following:
Returns the same hash code for the given object as would be returned by the default method hashCode(), wh...
How do I exit a WPF application programmatically?
... a session and the SessionEnding event is either unhandled, or handled without cancellation.
Please also note that Application.Current.Shutdown(); may only be called from the thread that created the Application object, i.e. normally the main thread.
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Plotting two variables as lines using ggplot2 on the same graph
...49, -10, 10))),
date = seq(as.Date("2002-01-01"), by="1 month", length.out=100)
)
test_data %>%
gather(key,value, var0, var1) %>%
ggplot(aes(x=date, y=value, colour=key)) +
geom_line()
Just to be clear the data that ggplot is consuming after piping it via gather looks lik...
Non-recursive depth first search algorithm
...o something
}
The symmetry of the two is quite cool.
Update: As pointed out, take_first() removes and returns the first element in the list.
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Verify a certificate chain using openssl verify
...diate.pem RootCert.pem) UserCert.pem
Update:
As Greg Smethells points out in the comments, this command implicitly trusts Intermediate.pem. I recommend reading the first part of the post Greg references (the second part is specifically about pyOpenSSL and not relevant to this question).
In cas...
Eclipse - java.lang.ClassNotFoundException
When trying to start my JUnit-Test out of Eclipse, I get a "ClassNotFoundException". When running "mvn test" from console - everything works fine. Also, there are no problems reported in Eclipse.
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How to delete from a text file, all lines that contain a specific string?
...
To remove the line and print the output to standard out:
sed '/pattern to match/d' ./infile
To directly modify the file – does not work with BSD sed:
sed -i '/pattern to match/d' ./infile
Same, but for BSD sed (Mac OS X and FreeBSD) – does not work...
how to create a Java Date object of midnight today and midnight tomorrow?
...gnore all offset and time zone details. Especially as the Question talks about using these values for comparison (maybe database queries?), a zoned date-time value is likely to be more useful.
– Basil Bourque
Apr 22 '16 at 2:57
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How does `is_base_of` work?
...ind of a "challenge accepted" mentality among them to implement things without the help of the compiler :)
– Johannes Schaub - litb
Feb 28 '16 at 12:34
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Expand a div to fill the remaining width
I want a two-column div layout, where each one can have variable width e.g.
21 Answers
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