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What does “program to interfaces, not implementations” mean?
...r of a program at run-time. It also helps you to write far better programs from the maintenance point of view.
Here's a basic example for you.
public enum Language
{
English, German, Spanish
}
public class SpeakerFactory
{
public static ISpeaker CreateSpeaker(Language language)
{
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How to replace all dots in a string using JavaScript
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@Jasper from my understanding, it's actually faster in most browsers, although I haven't actually benchmarked it myself.
– andrew
Jun 26 '12 at 21:58
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onConfigurationChanged not getting called
...your activity, even when running on an Android 3.2 or
higher device).
(From http://developer.android.com/guide/topics/resources/runtime-changes.html)
TL;DR: add "|screenSize" to configChanges when targeting API level 13+
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Flatten list of lists [duplicate]
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Using itertools.chain.from_iterable is much simpler.
– Platinum Azure
Jun 29 '12 at 15:41
5
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How to run code when a class is subclassed? [duplicate]
...e. Although there doesn't seem to be any harm in making SuperClass inherit from object... it's definitely necessary for Watcher to inherit from type, not object.
– ArtOfWarfare
Sep 19 '15 at 14:36
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Java Set retain order?
...ion in Java. Your expectation of it keeping insertion order probably comes from lists but sets are not lists.
– Konrad Höffner
Aug 9 '19 at 10:53
add a comment
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Can Flask have optional URL parameters?
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You should add here the info from the external link because if that link will no longer be valid, your answer will be damaged.
– tomab
Oct 21 '15 at 9:29
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What is [Serializable] and when should I use it?
...bject to a remote application by means of a Web Service, passing an object from one domain to another, passing an object through a firewall as an XML string, or maintaining security or user-specific information across applications.
Apply SerializableAttribute to a type to indicate that instances of ...
How do you stop MySQL on a Mac OS install?
.... After using the stop command, start would do nothing, as would starting from the MySQL System Preferences panel.
– Ross Henderson
Apr 16 '11 at 1:00
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