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Polymorphism vs Overriding vs Overloading
...is not definable for Humans. It is only definable for the subclasses Male and Female. Also, Human is an abstract concept — You cannot create a human that is neither Male nor Female. It’s got to be one or the other.
So we defer the implementation by using the abstract class.
public class Mal...
time.sleep — sleeps thread or process?
...tantive part of the sleep operation is wrapped in a Py_BEGIN_ALLOW_THREADS and Py_END_ALLOW_THREADS block, allowing other threads to continue to execute while the current one sleeps. You can also test this with a simple python program:
import time
from threading import Thread
class worker(Thread)...
Running multiple TeamCity Agents on the same computer?
..., each running a single TeamCity build agent. Each machine is very strong, and we'd like to run several build agents on the same machine.
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How to write a Python module/package?
I've been making Python scripts for simple tasks at work and never really bothered packaging them for others to use. Now I have been assigned to make a Python wrapper for a REST API. I have absolutely no idea on how to start and I need help.
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Elastic Search: how to see the indexed data
I had a problem with ElasticSearch and Rails, where some data was not indexed properly because of attr_protected. Where does Elastic Search store the indexed data? It would be useful to check if the actual indexed data is wrong.
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How to change the background color of the options menu?
...arent="Theme.AppCompat.Light.DarkActionBar">
...
<item name="android:itemBackground">@color/overflow_background</item>
...
</style>
Tested from API 4.2 to 5.0.
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What are these attributes: `aria-labelledby` and `aria-hidden`
...sible Rich Internet Applications (ARIA) defines ways to make Web
content and Web applications (especially those developed with Ajax and
JavaScript) more accessible to people with disabilities.
To be precise for your question, here is what your attributes are called as ARIA attribute states and...
How to save the output of a console.log(object) to a file?
...ng JSON.stringify(object) , but it doesn't go down on the whole structure and hierarchy.
9 Answers
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How to exclude file only from root folder in Git
...me files being added, but I have several config.php files in source tree and I need to exclude only one, located in the root while other keep under revision control.
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How to fix “containing working copy admin area is missing” in SVN?
...aining-working.html
Check-out the folder "blabla" to a different location and then copy its .svn folder back into the original "blabla".
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