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How do I design a class in Python?
...ing like:
dog.footstep(0)
Now, it may be that for your case you need to read in your raw data file and compute the footstep locations. All this could be hidden in the footstep() function so that it only happens once. Something like:
class Dog:
def __init__(self):
self._footsteps=None
...
How can I create tests in Android Studio?
...w project and you will see the following default folders.
Everything is already there and waiting for you to create your tests. It's all set up already!
How to create local unit tests
Open the ExampleUnitTest file shown in the image above. it should look something like this:
public class ExampleUni...
Eclipse compilation error: The hierarchy of the type 'Class name' is inconsistent
...the following error:
Archive for required library in project cannot be read...
and when that was fixed the "inconsistent-error" disappeared.
Actually I had added jars to the build path, but for some reason they could not be read with error
Archive for required library in project cannot be...
Are there constants in JavaScript?
... These days (3.5 years later) you can use Object.defineProperty to create read-only properties that also can't be deleted. This works in the current version of all major browsers (but incorrectly in IE8). See the answer by @NotAName
– Phrogz
Jun 1 '12 at 3:50
...
Master-master vs master-slave database architecture?
...e compiled
1. Master-Slave Replication
Pros
Analytic applications can read from the slave(s) without impacting the master
Backups of the entire database of relatively no impact on the master
Slaves can be taken offline and sync back to the master without any downtime
Cons
In the instance o...
Docker and securing passwords
...) or --env-file argument (for multiple variables in a file) to docker run. Read this for using environmental with docker-compose.
Using --env-file is definitely a safer option since this protects against the secrets showing up in ps or in logs if one uses set -x.
However, env vars are not particul...
Significance of a .inl file in C++
...way of structuring your code that provides a hint to the humans that might read it.
I use .inl files in two cases:
For definitions of inline functions.
For definitions of function templates.
In both cases, I put the declarations of the functions in a header file, which is included by other file...
When to use a key/value store such as Redis instead/along side of a SQL database?
I have read great things about key/value stores such as Redis but I can't seem to figure out when it's time to use it in an application.
...
Is MVC a Design Pattern or Architectural pattern
...ng Code Metrics).
A few benefits:
Easily Maintainable
High Re-usability
Readable because of abstractions
Architectural patterns say how to utilize resources effectively.
Parallel tasks execution like programmers and graphic designers can work parallel.
Multiple technologies can be utilized to...
Is there a performance difference between a for loop and a for-each loop?
...nt e : elements) {
doSomething(e);
}
When you see the colon (:), read it as
“in.” Thus, the loop above reads as
“for each element e in elements.” Note
that there is no performance penalty
for using the for-each loop, even for
arrays. In fact, it may offer a slight
perfo...