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What is the difference between “px”, “dip”, “dp” and “sp”?
...Scale-independent Pixels - this is like the dp unit, but it is also scaled by the user's font size preference. It is recommended you
use this unit when specifying font sizes, so they will be adjusted
for both the screen density and user's preference.
From Understanding Density Indepen...
How to publish a website made by Node.js to Github Pages?
...ng Node.js as the server. As I know, the node.js file should start working by typing commands in terminal, so I'm not sure if Github Pages supports node.js-hosting. So what should I do?
...
What exactly do “IB” and “UB” mean?
...of this undefined behavior might just have been to mess up the memory used by the rest of your app). It's not required to be consistent, so running the program twice might give different results. It may depend on the phases of the moon, the color of the shirt you're wearing, or absolutely anything e...
What are the disadvantages to declaring Scala case classes?
...
First the good bits:
Everything immutable by default
Yes, and can even be overridden (using var) if you need it
Getters automatically defined
Possible in any class by prefixing params with val
Decent toString() implementation
Yes, very useful, but doable by hand on a...
What's the meaning of interface{}?
I'm new to interfaces and trying to do SOAP request by github
6 Answers
6
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How do I get the SharedPreferences from a PreferenceActivity in Android?
...te
According to Shared Preferences | Android Developer Tutorial (Part 13) by Sai Geetha M N,
Many applications may provide a way to capture user preferences on the
settings of a specific application or an activity. For supporting
this, Android provides a simple set of APIs.
Preference...
Message Queue vs Message Bus — what are the differences?
...
By and large, when it comes to vendor software products, they are used interchangeably, and do not have the strong distinctions in terms of push or pull as you describe.
The BUS vs. QUEUE is indeed somewhat a legacy concept,...
What does “O(1) access time” mean?
...ant such that the runtime (or number of operations, etc.) is bounded above by the constant. There could still be large variance in the runtime: e.g., int main() { int n; cin >> n; if(n == 0) { sleep(60 * 60 * 24 * 365); } cout << n; } is O(1).
– jason
...
In which scenario do I use a particular STL container?
...e bottom as a guide on which to use in different usage scenarios:
Created by David Moore and licensed CC BY-SA 3.0
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Interfaces with static fields in java for sharing 'constants'
... An example is the SwingConstants interface in Swing, which is implemented by dozens of classes that all "re-export" all of its constants (even the ones that they don't use) as their own.
But don't just take my word for it, Josh Bloch also says it's bad:
The constant interface pattern is a poor...