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Why does int num = Integer.getInteger(“123”) throw NullPointerException?
...cuous sounding names
If your code misbehaves
Make sure you're calling the right methods
Read the library documentation
For API designers
Don't violate the principle of least astonishment
Don't violate the abstraction hierarchy
Don't use similar names for wildly differ...
How to upgrade PowerShell version from 2.0 to 3.0
...load and install from http://www.microsoft.com/en-us/download/details.aspx?id=34595. You need Windows 7 SP1 though.
It's worth keeping in mind that PowerShell 3 on Windows 7 does not have all the cmdlets as PowerShell 3 on Windows 8. So you may still encounter cmdlets that are not present on your ...
Default profile in Spring 3.1
...ault")
the bean will only be added to the context if no other profile is identified. If you pass in a different profile, e.g. -Dspring.profiles.active="demo", this profile is ignored.
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impr...
Is there a performance difference between CTE , Sub-Query, Temporary Table or Table Variable?
...es not seem to take advantage of this basic optimization method (you might call this common subquery elimination).
Temporary tables are a different matter, because you are providing more guidance on how the query should be run. One major difference is that the optimizer can use statistics from the...
Can I get the name of the current controller in the view?
...
In the Rails Guides, it says:
The params hash will always contain the :controller and :action keys, but you should use the methods controller_name and action_name instead to access these values
ActionController Parameters
So let's s...
Mail multipart/alternative vs multipart/mixed
...t.URL;
import java.util.HashMap;
import java.util.List;
import java.util.UUID;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Created by StrongMan on 25/05/14.
*/
public class MailContentBuilder {
private static final Pattern COMPILED_PATTERN_SRC_URL_SINGLE = Pattern.c...
How To Check If A Key in **kwargs Exists?
...your code slower, and requires a bit more typing, but if interfaces of the called function (in this case print) changes, you don't need to change your code. This approach reduces development time while supporting all interface changes.
...
How can I make an svg scale with its parent container?
... viewbox="0 0 1000 1000"
Viewbox is an important attribute because it basically tells the SVG what size to draw and where. If you used CSS to make the SVG 1000x1000 px but your viewbox was 2000x2000, you would see the top-left quarter of your SVG.
The first two numbers, min-x and min-y, determine ...
Toggle button using two image on different state
...
Do this:
<ToggleButton
android:id="@+id/toggle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/check" <!--check.xml-->
android:layout_margin="10dp"
a...
When would you use .git/info/exclude instead of .gitignore to exclude files?
...cached <path-name> will delete it from the repository, but keep it locally. git update-index --skip-worktree <path-name> will ignore changes to the file, but keep it in the repository. Out of curiosity: Why do you want the sln-file excluded? It's an important part of a .Net solution ri...