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Multiple returns from a function
... methods above. It may make sense to use this, though, when using the same set of variables in a number of places (or of course, working in a language that doesn't support the above methods or allows you to do this without extra typing).
class MyXYZ
{
public $x;
public $y;
public $z;
}
...
Android SDK location
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Do you have a screen of the content of your folder? This is my setup:
I hope these screenshots can help you out.
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Java and SQLite [closed]
...ql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
public class Test {
public static void main(String[] args) throws Exception {
Class.forName("org.sqlite.JDBC");
Connection conn = DriverManager.getConnection("jdbc:sqlite:t...
How do I use InputFilter to limit characters in an EditText in Android?
I want to restrict the chars to 0-9, a-z, A-Z and spacebar only. Setting inputtype I can limit to digits but I cannot figure out the ways of Inputfilter looking through the docs.
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Keep-alive header clarification
..., for how long does the connection is saved to me ? (in other words , if I set keep alive- "keep" till when?)
An typical keep-alive response looks like this:
Keep-Alive: timeout=15, max=100
See Hypertext Transfer Protocol (HTTP) Keep-Alive Header for example (a draft for HTTP/2 where the keep-a...
Sorting a vector in descending order
...O(n * log(n)) = O(n * log(n) + n). They are two ways of defining the same set. You mean to say "This might be slower."
– pjvandehaar
Mar 1 '16 at 20:56
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Why does flowing off the end of a non-void function without returning a value not produce a compiler
... code path returns a value is quite difficult, and a return value could be set with embedded assembler or other tricky methods.
From C++11 draft:
§ 6.6.3/2
Flowing off the end of a function [...] results in undefined behavior in a value-returning function.
§ 3.6.1/5
If control reaches ...
Docker can't connect to docker daemon
... helps to get environment variables
eval "$(docker-machine env default)" # Set environment variables
The docker-machine start command outputs the comments to guide the process.
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Set mouse focus and move cursor to end of input using jQuery
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Looks like clearing the value after focusing and then resetting works.
input.focus();
var tmpStr = input.val();
input.val('');
input.val(tmpStr);
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How to create border in UIButton?
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You can set the border properties on the CALayer by accessing the layer property of the button.
First, add Quartz
#import <QuartzCore/QuartzCore.h>
Set properties:
myButton.layer.borderWidth = 2.0f;
myButton.layer.borderCo...