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Is there a method that calculates a factorial in Java?
I didn't find it, yet. Did I miss something?
I know a factorial method is a common example program for beginners. But wouldn't it be useful to have a standard implementation for this one to reuse?
I could use such a method with standard types (Eg. int, long...) and with BigInteger / BigDecimal, too...
Install tkinter for Python
... installation directory - and it should work. It worked for me - and I can now import Tkinter etc to my heart's content - yipidy-yay. An entire afternoon spent on this - hope this note saves others from the pain.
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Getting the current page
...he last of which - page five - will show that remaining 0.313 of content.
Now, numberOfPages being five means that the page indices will be 0, 1, 2, 3, and 4.
When I swipe rightwards, paging towards the final offset, the scrollViewDidEndDecelerating method gives a final X offset of 2412.
Applyin...
Impossible to Install PG gem on my mac with Mavericks
...u chose, because you'll need it shortly.
/Library/PostgreSQL/9.3
If you now try and install the latest pg gem (0.17.0) you'll need to pass a couple of options on the command line. This is what I used:
ARCHFLAGS="-arch x86_64" gem install pg -- --with-pg-config=/Library/PostgreSQL/9.3/bin/pg_conf...
setResult does not work when BACK button pressed
...
And even if there weren't, you wouldn't know about it when it would be introduced in an API update. Not as easily as you would when behavior of onPause() or onDestroy() changed. Those are the methods you are supposed to override.
– pjv
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Can I use GDB to debug a running process?
.../sys/kernel/yama/ptrace_scope depending on your requirements. Many systems now default to 1 or higher.
The sysctl settings (writable only with CAP_SYS_PTRACE) are:
0 - classic ptrace permissions: a process can PTRACE_ATTACH to any other
process running under the same uid, as long as it is dump...
Can I obtain method parameter name using Java reflection?
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I don't know if they changed the arguments for the compiler plugin, but with the latest (3.5.1 as of now) I had to do to use compiler args in the configuration section: <configuration> <compilerArgs> <arg>-pa...
Parsing query strings on Android
...() worked, but was deprecated in L, and removed in M.
So the best answer now is UrlQuerySanitizer. This has existed since API level 1 and still exists. It also makes you think about the tricky issues like how do you handle special characters, or repeated values.
The simplest code is
UrlQuerySan...
How to find keys of a hash?
I know in javascript Objects double as hashes but i have been unable to find a built in function to get the keys
9 Answers...
HTTP requests and JSON parsing in Python
...equests.get(link).text
# convert 'str' to Json
data = json.loads(data)
# Now you can access Json
for i in data['routes'][0]['legs'][0]['steps']:
lattitude = i['start_location']['lat']
longitude = i['start_location']['lng']
print('{}, {}'.format(lattitude, longitude))
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