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C# allows user-defined types to control assignment and casting through the use of the explicit and implicit keywords. The signature of the method takes the form: public static <implicit/explicit> operator <ResultingType>(<SourceType> myType) The method cannot take any more argu...

Command: adb devices Result example: List of devices attached emulator-5554 device PhoneRT45Fr54 offline 123.454.67.45 no device First column - device serial number Second column - connection status Android documentation

Enter these commands in Android device Terminal su setprop service.adb.tcp.port 5555 stop adbd start adbd After this, you can use CMD and ADB to connect using the following command adb connect 192.168.0.101.5555 And you can disable it and return ADB to listening on USB with setprop servi...

To generate random permutation of 5 numbers: sample(5) # [1] 4 5 3 1 2 To generate random permutation of any vector: sample(10:15) # [1] 11 15 12 10 14 13 One could also use the package pracma randperm(a, k) # Generates one random permutation of k of the elements a, if a is a vector, # ...

'if only one area (not multiple areas): With Range("A3:D20") Debug.Print .Cells(.Cells.CountLarge).Row Debug.Print .Item(.Cells.CountLarge).Row 'using .item is also possible End With 'Debug prints: 20 'with multiple areas (also works if only one area): Dim rngArea As Range,...

Many developers like to customize the font, text, and background color of their IDE's. You can do this in Xcode by opening the app preference pane, either by going to XCODE->Preferences, or by pressing '⌘,' With the preference pane open you can click on the 'Fonts and Colors' tab. From her...

In Python 3.x all classes are new-style classes; when defining a new class python implicitly makes it inherit from object. As such, specifying object in a class definition is a completely optional: Python 3.x3.0 class X: pass class Y(object): pass Both of these classes now contain object in ...

A Simple FXML document outlining an AnchorPane containing a button and a label node: <?xml version="1.0" encoding="UTF-8"?> <?import java.lang.*?> <?import java.util.*?> <?import javafx.scene.*?> <?import javafx.scene.control.*?> <?import ...

Swift myButton.titleLabel?.font = UIFont(name: "YourFontName", size: 20) Objective C myButton.titleLabel.font = [UIFont fontWithName:@"YourFontName" size:20];

Here is an example of a method that would live inside a SQLiteOpenHelper subclass. It uses the searchTerm String to filter the results, iterates through the Cursor's contents, and returns those contents in a List of Product Objects. First, define the Product POJO class that will be the container f...

Arrays You can iterate over nested arrays: [[1, 2], [3, 4]].each { |(a, b)| p "a: #{ a }", "b: #{ b }" } The following syntax is allowed too: [[1, 2], [3, 4]].each { |a, b| "a: #{ a }", "b: #{ b }" } Will produce: "a: 1" "b: 2" ...

The simplest example of an injection in an Angular app - injecting $scope to an Angular Controller: angular.module('myModule', []) .controller('myController', ['$scope', function($scope) { $scope.members = ['Alice', 'Bob']; ... }]) The above illustrates an injection of a $scope into ...

There is also an option to dynamically request components. You can do it using the $injector service: myModule.controller('myController', ['$injector', function($injector) { var myService = $injector.get('myService'); }]); Note: while this method could be used to prevent the circular depen...

Equivalently, we can use the $inject property annotation to achieve the same as above: var MyController = function($scope) { // ... } MyController.$inject = ['$scope']; myModule.controller('MyController', MyController);

To start with multi-threading, you would need the pthreads-ext for php, which can be installed by $ pecl install pthreads and adding the entry to php.ini. A simple example: <?php // NOTE: Code uses PHP7 semantics. class MyThread extends Thread { /** * @var string * Variab...

Any class can configure its own string formatting syntax through the __format__ method. A type in the standard Python library that makes handy use of this is the datetime type, where one can use strftime-like formatting codes directly within str.format: >>> from datetime import datetime &...

The Switch statement works very well with Enum values enum CarModel { case Standard, Fast, VeryFast } let car = CarModel.Standard switch car { case .Standard: print("Standard") case .Fast: print("Fast") case .VeryFast: print("VeryFast") } Since we ...

Ansible can be installed on CentOS or other Red Hat based systems. Firstly you should install the prerequisites: sudo yum -y update sudo yum -y install gcc libffi-devel openssl-devel python-pip python-devel then install Ansible with pip: sudo pip install ansible I can recommend for you to u...

From MSDN: An enumeration type (also named an enumeration or an enum) provides an efficient way to define a set of named integral constants that may be assigned to a variable. Essentially, an enum is a type that only allows a set of finite options, and each option corresponds to a number. By d...

.' is the correct way to transpose a vector or matrix in MATLAB. ' is the correct way to take the complex conjugate transpose (a.k.a. Hermitian conjugate) of a vector or matrix in MATLAB. Note that for the transpose .', there is a period in front of the apostrophe. This is in keeping with the ...