Tutorial by Examples: an

The DayNight theme gives an app the cool capability of switching color schemes based on the time of day and the device's last known location. Add the following to your styles.xml: <style name="AppTheme" parent="Theme.AppCompat.DayNight"> <!-- Customize your th...

Lets first understand the problem, consider this figure- We want to calculate ϴ, where we know A, B & O. Now, if we want to get ϴ, we need to find out α and β first. For any straight line, we know- y = m * x + c Let- A = (ax, ay), B = (bx, by), and O = (ox, oy). So for the line OA- oy =...

/** * Runs user-specified code when the given javascript object is garbage collected */ template<class CALLBACK_FUNCTION> void global_set_weak(v8::Isolate * isolate, const v8::Local<v8::Object> & javascript_object, CALLBACK_FUNCTION function) { struct SetWeakCallbackData{...

When a Component is resolved from the Windsor container it must have a definition of the scope it is in. By scope meaning if and how it is reused and when to release the object for the Garbage Collector to destroy. This is the LifeStlye of the Component. The way to specify a LifeStyle is by registe...

The idea is to have one or more control machines from where you can issue ad-hoc commands to remote machines (via ansible tool) or run a sequenced instruction set via playbooks (via ansible-playbook tool). Basically, we use Ansible control machine, this will typically be your desktop, laptop or s...

The try...catch...finally statement combines exception handling with clean-up code. The finally block contains code that will be executed in all circumstances. This makes them suitable for resource management, and other kinds of cleanup. Try-finally Here is an example of the simpler (try...finally...

Given a simple sitecore item: Item item; The item itself does not contain it's url. To obtain a url for an item you need to make a call to the static class Sitecore.Links.LinkManager string url = LinkManager.GetItemUrl(item); an overload of this accepts a UrlOptions class: UrlOptions option...

To create a new model in your module Add a folder Model in your module root folder and create a file Modelname.php in this folder. for example Rick/Demo/Model/Modelname.php The class name of your model does matter call it like this: <?php class Rick_Demo_Model_Modelname { } make sure y...

First we must edit the SSH daemon config file. Though under different Linux distributions this may be located in different directories, usually it is stored under /etc/ssh/sshd_config Use your text editor to change the values set in this file, all lines starting with # are commented out and must ha...

Since ls() finds objects by names, it's a handy way to find out if an object is present in the scene. ls() with a list of objects will only return the ones which are in the scene. available_characters = cmds.ls('fred', 'barney', 'wilma', 'dino') # available_characters will contain only the named...

The pattern parameter_pack ... is expanded into a list of comma-separated substitutions of parameter_pack with each one of its parameters template<class T> // Base of recursion void variadic_printer(T last_argument) { std::cout << last_argument; } template<class T, class .....

Maya commands come in a very small range of forms. Recognizing the form that a command takes is useful for working with new commands. Simple commands The most basic form is simply <command>(<object>) where is the function you're calling and is the string name of an object you are ...

Introduction Consider the following problem: L is a sorted list containing n signed integers (n being big enough), for example [-5, -2, -1, 0, 1, 2, 4] (here, n has a value of 7). If L is known to contain the integer 0, how can you find the index of 0 ? Naïve approach The first thing that comes ...

Entity entity; //The entity you want to teleport Entity teleportTo; //The entity where you want <entity> to be teleported to boolean success = entity.teleport(teleportTo); //Attempting to teleport. if(success) { //Teleport was successful }else { //Teleport wasn't successful } ...

Entity toBeTeleported; //The entity you want to teleport Location teleportTo = new Location(world,x,y,z,yaw,pitch); //The location to teleport to boolean success = toBeTeleported.teleport(teleportTo); if(success) { //Teleport was successful }else { //Teleport wasn't success...

public async Task SetProductInactiveAsync(int productId) { using (IDbConnection con = new SqlConnection("myConnectionString")) { await con.ExecuteAsync("SetProductInactive", new { id = productId }, commandType: CommandType.StoredProcedure); ...

This will be a relatively comprehensive tutorial of how to write a command line tool to print the weather from the zip code provided to the command line tool. The first step is to write the program in ruby to do this action. Let's start by writing a method weather(zip_code) (This method requires the...

What is Dagger 2 ? The website describes itself as: Dagger is a fully static, compile-time dependency injection framework The library makes it easy to model dependency graphs as well as to reuse objects. Since reflection is only used at compile time as part of the annotation processing Dagger...

Switches can switch on tuples: public typealias mdyTuple = (month: Int, day: Int, year: Int) let fredsBirthday = (month: 4, day: 3, year: 1973) switch theMDY { //You can match on a literal tuple: case (fredsBirthday): message = "\(date) \(prefix) the day Fred was born"...

Create a simple servlet: package web.example; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse...