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How to format strings in Java
...varargs and autoboxing improvements in Java 1.5 and turns the above into a one-liner:
MessageFormat.format("String is \"{1}\", number is {0}.", 42, "foobar");
MessageFormat is a little bit nicer for doing i18nized plurals with the choice modifier. To specify a message that correctly uses the sin...
Detect if called through require or directly by command line
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There is another, slightly shorter way (not outlined in the mentioned docs).
var runningAsScript = !module.parent;
I outlined more details about how this all works under the hood in this blog post.
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Is it pythonic to import inside functions?
...e things more permanent by moving the import line to the top of the file.
One other point, I prefer to get an ImportError exception before any code is run -- as a sanity check, so that's another reason to import at the top.
I use pyChecker to check for unused modules.
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Android: How to stretch an image to the screen width while maintaining aspect ratio?
...s post: stackoverflow.com/questions/4677269/… There I use a ImageView so one can set the drawable in the XML or use it like normal ImageView in code to set the image. Works great!
– Patrick Boos
Jan 14 '11 at 5:51
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java SSL and cert keystore
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anyone knows how to reference this on a windows box? System.setProperty("javax.net.ssl.trustStore", "C:\\Program Files (x86)\\Java\\jdk1.7.0_21\\jre\\lib\\security\\cacerts"); isn't working for me :(
– sim...
C++ “virtual” keyword for functions in derived classes. Is it necessary?
...The 'virtualness' of a function is propagated implicitly, however at least one compiler I use will generate a warning if the virtual keyword is not used explicitly, so you may want to use it if only to keep the compiler quiet.
From a purely stylistic point-of-view, including the virtual keyword cle...
Checking if a string can be converted to float in Python
...ular expression:
import re
if re.match(r'^-?\d+(?:\.\d+)?$', element) is None:
print "Not float"
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Async/Await vs Threads
...hing taking time, most typically an I/O request. Which traditionally was done with a callback when the I/O request was complete. Writing code that relies on these callbacks is quite difficult, await greatly simplifies it.
capable of doing what ever a Thread can do asynchronously ?
Roughly. ...
Casting vs using the 'as' keyword in the CLR
...n. That throws an exception immediately, which means that no more work is done under incorrect assumptions, and the exception correctly shows the type of bug.
// This will throw an exception if randomObject is non-null and
// refers to an object of an incompatible type. The cast is
// the best code...
Replace console output in Python
I'm wondering how I could create one of those nifty console counters in Python as in certain C/C++-programs.
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