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How to read data when some numbers contain commas as thousand separator?
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The same trick use in similar problem. And to add: one could use either setClass("num.with.commas") or suppresMessage(setAs(.....)) to avoid message about missing class.
– Marek
May 10 '11 at 13:12
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Why number 9 in kill -9 command in unix? [closed]
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As for the "significance" of 9... I would say there is probably none. According to The Linux Programming Interface(p 388):
Each signal is defined as a unique (small) integer, starting
sequentially from 1. These integers are defined in with
symbolic names of the form SIGxxxx . Sinc...
Import package.* vs import package.SpecificType [duplicate]
...ference regarding overhead to write an import loading all the types within one package ( import java.* ); than just a specific type (i.e. import java.lang.ClassLoader )? Would the second one be a more advisable way to use than the other one?
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Elegant way to search for UTF-8 files with BOM?
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What about this one simple command which not just finds but clears the nasty BOM? :)
find . -type f -exec sed '1s/^\xEF\xBB\xBF//' -i {} \;
I love "find" :)
Warning The above will modify binary files which contain those three characters....
Optimizing away a “while(1);” in C++0x
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Does someone have a good explanation of why this was necessary to allow?
Yes, Hans Boehm provides a rationale for this in N1528: Why undefined behavior for infinite loops?, although this is WG14 document the rationale applies to C++...
In Python, when should I use a function instead of a method?
The Zen of Python states that there should only be one way to do things- yet frequently I run into the problem of deciding when to use a function versus when to use a method.
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Single vs Double quotes (' vs ")
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I suggest though single over double -- Why use two when one can do the job.
– Ujjwal Singh
Jun 22 '14 at 19:00
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When should you use constexpr capability in C++11?
... runtime.
Another good example would be a DegreesToRadians function. Everyone finds degrees easier to read than radians. While you may know that 180 degrees is 3.14159265 (Pi) in radians it is much clearer written as follows:
const float oneeighty = DegreesToRadians( 180.0f );
Lots of good info h...
How to get the client IP address in PHP [duplicate]
...FOR'], but this value is easily spoofed. For example, it can be set by someone without a proxy, or the IP can be an internal IP from the LAN behind the proxy.
This means that if you are going to save the $_SERVER['HTTP_X_FORWARDED_FOR'], make sure you also save the $_SERVER['REMOTE_ADDR'] value. E....
Converting between java.time.LocalDateTime and java.util.Date
Java 8 has a completely new API for date and time. One of the most useful classes in this API is LocalDateTime , for holding a timezone-independent date-with-time value.
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