Many databases can be used in Weka. Firstly, the DatabaseUtils.props file must be edited to match your database; specifically you must provide your database's name, location, port and correct driver.
jdbcDriver=org.gjt.mm.mysql.Driver
jdbcURL=jdbc:mysql://localhost:3306/my_database
Then the dat...
IronPython enables to use generic classes and methods from the .net framework.
Generics can be used with the same syntax as accessing an index. For passing more than one type-parameter, they must be separated with a comma:
l = Dictionary[int, str]()
That way we create a dictionary where keys on...
A literal inside a enumeration is a discrete type so we can use attribute Image to find out which literal it is as text form. Notice that this prints out the same word as in the code (but in upper case).
with Ada.Text_IO; use Ada.Text_IO;
procedure Main is
type Fruit is (Banana, Pear, Orang...
Instead of attribute Image and Ada.Text_IO.Put on enumeration literals we can only use the generic package Ada.Text_IO.Enumeration_IO to print out the literals.
with Ada.Text_IO; use Ada.Text_IO;
procedure Main is
type Fruit is (Banana, Pear, Orange, Melon);
package Fruit_IO is new Enume...
Attribute Image capitalizes all characters of enumeration literals. The function Case_Rule_For_Names applies upper case for the first character and makes the rest lower case.
with Ada.Text_IO; use Ada.Text_IO;
with Ada.Strings.Maps.Constants; use Ada.Strings.Maps.Constants;
with Ada.Strings.Fixed...
You can set the desired UI widget's stylesheet using any valid CSS. The example below will set a QLabel's text color a border around it.
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::Mai...
Simply specifying a file destination, echo will create, write, or append to a file.
<echo file=example.txt" append="false">
hello world
</echo>
To print the contents of a file, we can use loadfile to read a file into a local property, and then use echo to print the value of it.
<loadfile property="contents" srcFile="example.txt" />
<echo message="${contents}" />
If your code is running behind a proxy and you know the end point, you can set this information in your code.
requests accepts a proxies parameter. This should be a dictionary that maps protocol to the proxy URL.
proxies = {
'http': 'http://proxy.example.com:8080',
'https': 'http://securepro...
requests uses specific environment variables automatically for proxy detection.
HTTP_PROXY will define the proxy URL to use for HTTP connections
HTTPS_PROXY will define the proxy URL to use for HTTPS connections
Once these environment variables are set, the Python code does not need to pass a...
The whole ES6 spec is not yet implemented in its entirety so you will only be able to use some of the new features. You can see a list of the current supported ES6 features at http://node.green/
Since NodeJS v6 there has been pretty good support. So if you using NodeJS v6 or above you can enjoy usi...
Xcode by itself has quite a few good tools built in, but sometimes you just want to change a specific behavior or create a convenience shortcut.
That's why there's Alcatraz.
Installation
curl -fsSL https://raw.githubusercontent.com/supermarin/Alcatraz/deploy/Scripts/install.sh | sh
Throw this ...
Open phone's settings
open battery
open menu and select "battery optimization"
from the dropdown menu select "all apps"
select the app you want to whitelist
select "don't optimize"
Now this app will show under not optimized apps.
An app can check whether it's...
The concept of timing is related more to the physics of flip flops than VHDL, but is an important concept that any designer using VHDL to create hardware should know.
When designing digital hardware, we are typically creating synchronous logic. This means our data travels from flip-flop to flip-flo...
The JWT RFC stablish three classes of claims:
Registered claims like sub, iss, exp or nbf
Public claims with public names or names registered by IANA which contain values that should be unique like email, address or phone_number. See full list
Private claims to use in your own context...
// $orders is collection
$orders->addAttributeToSelect('status'); // get status attribute
$orders->addAttributeToSelect('*'); // get all attributes
