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Does Android keep the .apk files? if so where?

... applications are in /data/app. I guess you can't access unless you have a rooted phone. I don't have a rooted phone here but try this code out: public class Testing extends Activity { private static final String TAG = "TEST"; @Override public void onCreate(Bundle savedInstanceState) { ...
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What is an idempotent operation?

...does not mean idempotent. Idempotent functions can have side effects. E.g. MySQL's truncate and delete. – Pacerier Mar 10 '15 at 23:11 ...
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How to determine if binary tree is balanced?

... of a tree (where the minimum height is the least number of steps from the root to a leaf, and the maximum is... well, you get the picture). Given that, we can define balance to be: A tree where the maximum height of any branch is no more than one more than the minimum height of any branch. (T...
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How to return result of a SELECT inside a function in PostgreSQL?

...hink you need a RETURN; before that END;, at least I did - but I'm doing a UNION so I'm not sure if that makes it different. – yekta Sep 4 '13 at 15:08 ...
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Can enums be subclassed to add new elements?

... no. As an example of a real problem take weekdays, weekend days and, the union, days of week. We could define all days within days-of-week but then we would not be able to represent properties special to either weekdays and weekend-days. What we could do, is have three enum types with a mapping b...
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How to define two fields “unique” as couple

... How would you handle this say if volume_number could be null? Mysql won't seem to enforce unique in that case. – Greg Jun 27 '11 at 17:28 27 ...
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Add a properties file to IntelliJ's classpath

...k whatever Directory youve created and select "Mark Directory As": "Source Root" – mschr Apr 27 '13 at 17:17 10 ...
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Can I run multiple programs in a Docker container?

... inside single container. This is an example of a docker container running mysql, apache and wordpress within a single container. Say, You have one database that is used by a single web application. Then it is probably easier to run both in a single container. If You have a shared database that is...
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PATH issue with pytest 'ImportError: No module named YadaYadaYada'

... when am i cding to a directory? i am running py.test from my root. unless I am mistaken and you mean as pytest walks through my folders – MattoTodd Apr 20 '12 at 21:46 ...
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How to repair a serialized string which has been corrupted by an incorrect byte count length?

... The OP's question does not appear to have a mysql column type issue. It is apparently corrupted by an incorrect byte calculation on the image value. Your answer does not pertain to the OP's specific question. You may wish to move your advice to: stackoverflow.com/q...