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How to use java.String.format in Scala?
...the default argument ordering if you need to. However, probably the only time you'd need / want to do this is if you are using the same argument more than once.
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Dynamically updating plot in matplotlib
...from a serial port and plots a graph of the collected data against arrival time. The time of arrival for the data is uncertain. I want the plot to be updated when data is received. I searched on how to do this and found two methods:
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How to detect if a script is being sourced
...estfile.ksh:
cat >testfile.ksh
chmod +x testfile.ksh
Than run it two time:
./testfile.ksh
. ./testfile.ksh
ls -l /tmp/ksh-*.log
-rw-r--r-- 1 user user 2183 avr 11 13:48 /tmp/ksh-9725.log
-rw-r--r-- 1 user user 2140 avr 11 13:48 /tmp/ksh-9781.log
echo $$
9725
and see:
diff /tmp/ksh-{9...
How do I get a class instance of generic type T?
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The short answer is, that there is no way to find out the runtime type of generic type parameters in Java. I suggest reading the chapter about type erasure in the Java Tutorial for more details.
A popular solution to this is to pass the Class of the type parameter into the constructor...
How to increment a datetime by one day?
How to increment the day of a datetime?
7 Answers
7
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How to get current moment in ISO 8601 format with date, hour, and minute?
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Use SimpleDateFormat to format any Date object you want:
TimeZone tz = TimeZone.getTimeZone("UTC");
DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm'Z'"); // Quoted "Z" to indicate UTC, no timezone offset
df.setTimeZone(tz);
String nowAsISO = df.format(new Date());
Using ...
Java Date vs Calendar
...tions of Date have since been deprecated.
Personally I tend to use either time in milliseconds as a long (or Long, as appropriate) or Calendar when there is a choice.
Both Date and Calendar are mutable, which tends to present issues when using either in an API.
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Decorators with parameters?
...ep
@types(str, int) # arg1 is str, arg2 is int
def string_multiply(text, times):
return text * times
print(string_multiply('hello', 3)) # Prints hellohellohello
print(string_multiply(3, 3)) # Fails miserably with TypeError
A final note: here I'm not using functools.wraps for the...
How to write a scalable Tcp/Ip based server
... about changing. For one, only have a single BeginAccept called at any one time. There used to be a very annoying .net bug around this, which was years ago so I don't recall the details.
Also, in the ReceiveCallback code, we process anything received from the socket before we queue the next receiv...
How to set input type date's default value to today?
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for .net users: DateTime.Today.ToString("yyyy-MM-dd")
– dvdmn
May 14 '14 at 12:19
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