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Is it possible for a computer to “learn” a regular expression by user-provided examples?
...ton, it is possible to learn some regular expressions by a program. Kearns and Valiant show some cases where it is not possible to learn a finite automaton. A related problem is learning hidden Markov Models, which are probabilistic automata that can describe a character sequence. Note that most mod...
MongoDB vs. Cassandra [closed]
...e hot data set fits in memory. Both also emphasize join-less data models (and encourage denormalization instead), and both provide indexes on documents or rows, although MongoDB's indexes are currently more flexible.
Cassandra's storage engine provides constant-time writes no matter how big your d...
Android - Package Name convention
For the "Hello World" example in android.com , the package name is
"package com.example.helloandroid;"
6 Answers
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How do I push amended commit to the remote Git repository?
When I've worked a bit with my source code, I did my usual thing commit and then I pushed to a remote repository. But then I noticed I forgot to organize my imports in the source code. So I do the amend command to replace the previous commit:
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Which Architecture patterns are used on Android? [closed]
I'm doing a small research of mobile platforms and I would like to know which design patterns are used in Android?
12 Answe...
Does Swift have documentation generation support?
...ocumentation in Quick Help (both in the popover when ⌥-clicking symbols, and in the Quick Help Inspector ⌥⌘2).
Symbol documentation comments are now based on the same Markdown syntax used by rich playground comments, so a lot of what you can do in playgrounds can now be used directly in sourc...
getting exception “IllegalStateException: Can not perform this action after onSaveInstanceState”
I have a Live Android application, and from market i have received following stack trace and i have no idea why its happening as its not happening in application code but its getting caused by some or the other event from the application (assumption)
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Exposing database IDs - security risk?
...s (in URLs, for example) is a security risk, but I'm having trouble understanding why.
7 Answers
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SparseArray vs HashMap
...rally slower, not indicated for large collections
They won't work in a non-Android project
HashMap can be replaced by the following:
SparseArray <Integer, Object>
SparseBooleanArray <Integer, Boolean>
SparseIntArray <Integer, Integer>
SparseLongArray <In...
“for line in…” results in UnicodeDecodeError: 'utf-8' codec can't decode byte
...ion 32: invalid continuation byte. I used python 3.6.5 to install aws cli. And when I tried aws --version it failed with this error. So I had to edit /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/configparser.py and changed the code to the following def read(self, filenames, encodi...