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Polymorphism with gson
...the derived classes: just one adapter for the base class or interface, provided of course that you are happy with the default serialization of the derived classes. Anyway, here's the code (package and imports removed) (also available in github):
The base class (interface in my case):
public interf...
Why does git revert complain about a missing -m option?
...erge commit, you have to specify which parent of the merge you want to consider to be the main trunk, i.e. what you want to revert to.
Often this will be parent number one, for example if you were on master and did git merge unwanted and then decided to revert the merge of unwanted. The first paren...
What is a “thread” (really)?
...file descriptors (e.g., open sockets), and security credentials (e.g., the ID of the user who started the process).
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java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
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You should do the transaction in a Handler as follows:
@Override
protected void onPostExecute(String result) {
Log.v("MyFragmentActivity", "onFriendAddedAsyncTask/onPostExecute");
new Handler().post(new Runnable() {
public void run() {
fm = getSuppor...
Difference between fold and reduce?
...st element type, whereas they can differ in fold as the accumulator is provided separately. This is reflected in the types:
List.fold : ('State -> 'T -> 'State) -> 'State -> 'T list -> 'State
List.reduce : ('T -> 'T -> 'T) -> 'T list -> 'T
In addition reduce throws an e...
Reading file contents on the client-side in javascript in various browsers
I'm attempting to provide a script-only solution for reading the contents of a file on a client machine through a browser.
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Creating email templates with Django
...on me but why do we use txt and htmly both at the same time for a mail. I didnt get this logic
– Shashank Vivek
Feb 21 '16 at 9:16
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Given the lat/long coordinates, how can we find out the city/country?
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The free Google Geocoding API provides this service via a HTTP REST API. Note, the API is usage and rate limited, but you can pay for unlimited access.
Try this link to see an example of the output (this is in json, output is also available in XML)
https://...
Rails update_attributes without save?
.../active_record/attribute_assignment.rb
Another cheat sheet:
http://www.davidverhasselt.com/set-attributes-in-activerecord/#cheat-sheet
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How might I find the largest number contained in a JavaScript array?
... hardcoded to 65535. According to this: code.google.com/p/v8/issues/detail?id=172 and by knowledge that arguments are pushed onto stack we know that it's not unlimited
– lukas.pukenis
Oct 3 '13 at 17:48
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