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Examples of GoF Design Patterns in Java's core libraries
...pattern implementations as possible, found in both the Java SE and Java EE APIs.
Creational patterns
Abstract factory (recognizeable by creational methods returning the factory itself which in turn can be used to create another abstract/interface type)
javax.xml.parsers.DocumentBuilderFactory#newI...
What's the difference between “Solutions Architect” and “Applications Architect”? [closed]
... will interact, what language is best suited, how to best use any existing api's, creating an api if none exists etc.
Both have their place, both tasks must be done in order to staisfy the requirement and in large orgs you will have dedicated people doing it, in smaller dev shops often times a dev...
How can I get the URL of the current tab from a Google Chrome extension?
...ynchronous!
});
This requires that you request access to the chrome.tabs API in your extension manifest:
"permissions": [ ...
"tabs"
]
It's important to note that the definition of your "current tab" may differ depending on your extension's needs.
Setting lastFocusedWindow: true in the quer...
Convert String to Calendar Object in Java
...es?
Java SE 8 and SE 9 and later
Built-in.
Part of the standard Java API with a bundled implementation.
Java 9 adds some minor features and fixes.
Java SE 6 and SE 7
Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
Android
The ThreeTenABP project...
How to implement a confirmation (yes/no) DialogPreference?
...internal.preference package, which means it is a part of Android's private APIs and you cannot access it from your application (private API classes are subject to change without notice, hence the reason why Google does not let you access them).
Solution: just re-create the class in your application...
What is the best AJAX library for Django? [closed]
...y be what you're looking for: django-dajax
Pretty well documented. Simple api. Very clean and nice. I plan on using it more in some of my projects. It's JS library agnostic, and works well with jQuery if that's your thing.
UPDATE:
Other solutions similar to dajaxice, but not standard dajax.
htt...
Android: HTTP communication should use “Accept-Encoding: gzip”
...
If you're using API level 8 or above there's AndroidHttpClient.
It has helper methods like:
public static InputStream getUngzippedContent (HttpEntity entity)
and
public static void modifyRequestToAcceptGzipResponse (HttpRequest request...
Parse JSON in JavaScript? [duplicate]
...
The standard way to parse JSON in JavaScript is JSON.parse()
The JSON API was introduced with ES5 (2011) and has since been implemented in >99% of browsers by market share, and Node.js. Its usage is simple:
const json = '{ "fruit": "pineapple", "fingers": 10 }';
const obj = JSON.parse(json)...
Should import statements always be at the top of a module?
...ome different module at runtime.
if [condition]:
import foo as plugin_api
else:
import bar as plugin_api
xx = plugin_api.Plugin()
[...]
There are probably other situations where you might place imports in other parts in the code.
...
Matplotlib discrete colorbar
...ok at the documentation for the base colormap class: http://matplotlib.org/api/colors_api.html#matplotlib.colors.Colormap )
It sounds like you want something like this:
import matplotlib.pyplot as plt
import numpy as np
# Generate some data
x, y, z = np.random.random((3, 30))
z = z * 20 + 0.1
# ...