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How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?
...gt; [1318996912, 1318496913]
irb(main):007:0>
irb(main):008:0* datetime_from_strptime = DateTime.strptime(times.first, format)
=> #<DateTime: 2011-10-19T04:01:52+00:00 ((2455854j,14512s,0n),+0s,2299161j)>
irb(main):009:0> datetime_from_time = Time.at(int_times.first).to_datetime
=>...
What is the difference between save and export in Docker?
...is "saved" images chain into another docker instance and create containers from these images.
export will fetch the whole container : like a snapshot of a regular VM. Saves the OS of course, but also any change you made, any data file written during the container life. This one is more like a tradit...
client secret in OAuth 2.0
...changing zoom and design to fit the app) but there was nothing stopping me from reading values from fields inside the web view with username and password. Therefore I totally agree with your second point and find it a big "bug" in OAuth spec. Point being "App doesn't get access to users credentials"...
How do you exit from a void function in C++?
How can you prematurely exit from a function without returning a value if it is a void function? I have a void method that needs to not execute its code if a certain condition is true. I really don't want to have to change the method to actually return a value.
...
How can I read command line parameters from an R script?
...ample:
spec <- matrix(c(
'in' , 'i', 1, "character", "file from fastq-stats -x (required)",
'gc' , 'g', 1, "character", "input gc content file (optional)",
'out' , 'o', 1, "character", "output filename (optional)",
'help' , 'h', 0, "logical", "this ...
FileNotFoundException while getting the InputStream object from HttpURLConnection
...his and it returns status 404. But strangely, it's also saving in DB! Also from what you mention, does it mean any REST service will only return a status code ? What if i want to return back more information such as a xml validation error message or a url if the post is successful ?
...
C++ convert from 1 char to string? [closed]
I need to cast only 1 char to string . The opposite way is pretty simple like str[0] .
2 Answers
...
Save ArrayList to SharedPreferences
...commit();
You can also serialize your ArrayList and then save/read it to/from SharedPreferences. Below is the solution:
EDIT:
Ok, below is the solution to save ArrayList as a serialized object to SharedPreferences and then read it from SharedPreferences.
Because API supports only storing and retri...
How can I propagate exceptions between threads?
...ou might like to transfer between threads, store the information somewhere from that catch clause and then use it later to rethrow an exception. This is the approach taken by Boost.Exception.
In C++0x, you will be able to catch an exception with catch(...) and then store it in an instance of std::e...
What is the difference between __init__ and __call__?
...es can be passed in inputs to other functions and/or methods, and executed from inside them.
Instances of Classes (aka Objects), can be treated as if they were functions: pass them to other methods/functions and call them. In order to achieve this, the __call__ class function has to be specialized....