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Why do I want to avoid non-default constructors in fragments?
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The callbacks like onCreate or onCreateView should read the parameters from the bundle - this way you are guaranteed to restore the state of the fragment correctly to the same state the fragment was initialised with (note this state can be different from the onSaveInstanceState bundle that is pa...
How do I get java logging output to appear on a single line?
...s of Java 7, java.util.logging.SimpleFormatter supports getting its format from a system property, so adding something like this to the JVM command line will cause it to print on one line:
-Djava.util.logging.SimpleFormatter.format='%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS %4$s %2$s %5$s%6$s%n'
Altern...
Iterate over the lines of a string
...he same results as the others (trailing blanks on a line are kept), i.e.:
from cStringIO import StringIO
def f4(foo=foo):
stri = StringIO(foo)
while True:
nl = stri.readline()
if nl != '':
yield nl.strip('\n')
else:
raise StopIteration
Meas...
Why does int i = 1024 * 1024 * 1024 * 1024 compile without error?
The limit of int is from -2147483648 to 2147483647.
5 Answers
5
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How do I make a simple makefile for gcc on Linux?
... use .PHONY: clean all default for those targets that are meant to be used from the command line. Also, Autoconf/Automake aren't that bad. Sure, they feel awful, and getting used to them is about as fun as forcing your head through a brick wall, but they do work, and they're well developed, and they...
How can I delete a newline if it is the last character in a file?
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You can do this with head from GNU coreutils, it supports arguments that are relative to the end of the file. So to leave off the last byte use:
head -c -1
To test for an ending newline you can use tail and wc. The following example saves the resul...
What is the best data type to use for money in C#?
...stem.Decimal
The Decimal value type represents decimal numbers ranging from positive 79,228,162,514,264,337,593,543,950,335 to negative 79,228,162,514,264,337,593,543,950,335. The Decimal value type is appropriate for financial calculations requiring large numbers of significant integral and fra...
spring boot default H2 jdbc connection (and H2 console)
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From http://docs.spring.io/spring-boot/docs/current/reference/html/common-application-properties.html
H2 Web Console (H2ConsoleProperties):
spring.h2.console.enabled=true //Enable the console.
spring.h2.console.path=/h2-co...
What is the difference between const int*, const int * const, and int const *?
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For those who don't know about Clockwise/Spiral Rule:
Start from the name of the variable, move clockwisely (in this case, move backward) to the next pointer or type. Repeat until expression ends.
Here is a demo:
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Parallel.ForEach vs Task.Factory.StartNew
...so takes into account the number of hardware threads available, saving you from having to work out the optimum number of Tasks to start. Check out Microsoft's Patterns of Parallel Programming article; it's got great explanations of all of this stuff in it.
– Mal Ross
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