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How to run a shell script in OS X by double-clicking?
...d:
chmod a+x yourscriptname
Then, in Finder, right-click your file and select "Open with" and then "Other...".
Here you select the application you want the file to execute into, in this case it would be Terminal. To be able to select terminal you need to switch from "Recommended Applications" t...
Picking a random element from a set
... the buckets that make up the hashset, which allows us to more efficiently select a random elements. If random elements are necessary in Java, it might be worthwhile to define a custom hash set that allows the user to look under the hood. See [boost's docs][1] for a little more in this. [1] boos...
Multiline string literal in C#
... in front of a string to form a verbatim string literal:
string query = @"SELECT foo, bar
FROM table
WHERE id = 42";
You also do not have to escape special characters when you use this method, except for double quotes as shown in Jon Skeet's answer.
...
How to build a query string for a URL in C#?
...om key in nvc.AllKeys
from value in nvc.GetValues(key)
select string.Format(
"{0}={1}",
HttpUtility.UrlEncode(key),
HttpUtility.UrlEncode(value))
).ToArray();
return "?" + string.Join("&", array);
}
I imagine there...
ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
... find out valid service names, you can use the following query in oracle:
select value from v$parameter where name='service_names'
Once I updated tnsnames.ora to:
TEST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = *<validhost>*)(PORT = *<validport>*...
Hidden features of Perl?
...
One of my favourite features in Perl is using the boolean || operator to select between a set of choices.
$x = $a || $b;
# $x = $a, if $a is true.
# $x = $b, otherwise
This means one can write:
$x = $a || $b || $c || 0;
to take the first true value from $a, $b, and $c, or a default of 0...
How to change context root of a dynamic web project in Eclipse?
...nd redeploy. It worked for me.
If you are struck you have another choice: select the Tomcat server in the Servers view. Double clicking on that server (or selecting Open in the context menu) brings a multipage editor where there is a Modules page. Here you can change the root context of your module...
QLabel: set color of text and background
...nd-color :"+colcode+" ; color : blue; }");
getColor() method returns the selected color.
You can change label color using stylesheet
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android get real path by Uri.getPath()
...
This is what I do:
Uri selectedImageURI = data.getData();
imageFile = new File(getRealPathFromURI(selectedImageURI));
and:
private String getRealPathFromURI(Uri contentURI) {
String result;
Cursor cursor = getContentResolver().query(cont...
Changing API level Android Studio
... stable, there is an easy way to do it.
Right click on your project file
Select "Open Module Settings"
Go to the "Flavors" tab.
Select the Min SDK Version from the drop down list
PS: Though this question was already answered but Android Studio has changed a little bit by its stable release....