Tutorial by Examples | RIP Tutorial

Hello World in IOS

After you have set up Firebase to your IOS Project following the documentation for setting up firebase for IOS in other firebase related documentation you can get going with firebase. If you haven't already added the database pod to your Podfile do so now by adding pod Firebase/Database in ...

firebase-database • Hello World!

Pointers

D is a system programming language and thus allows you to manually manage and mess up your memory. Nevertheless, D uses a garbage collector per default to free unused memory. D provides pointer types T* like in C: void main() { int a; int* b = &a; // b contains address of a aut...

D Language • Memory & Pointers

Allocating on the heap

A new memory block on the heap is allocated using the new expression, which returns a pointer to the managed memory: void main() { int* a = new int; *a = 42; // dereferencing import std.stdio : writeln; writeln("a: ", *a); }

D Language • Memory & Pointers

@safe D

As soon as the memory referenced by a isn't referenced anymore through any variable in the program, the garbage collector will free its memory. D also allows pointer arithmetic, except in code that is marked as @safe. void safeFun() @safe { writeln("Hello World"); // allocatin...

D Language • Memory & Pointers

Processing $_POST request data

add_action('init', 'process_post_data'); function process_post_data() { if( isset( $_POST ) ) { // process $_POST data here } }

WordPress • init

Processing $_GET request data

add_action('init', 'process_get_data'); function process_get_data() { if( isset( $_GET ) ) { // process $_GET data here } }

WordPress • init

Registering a custom post type

add_action( 'init', function() { register_post_type( 'event', array( 'public' => true, 'label' => 'Events' ); ); }); Registers a new custom post type with a label Events and a slug event

WordPress • init

Hello World in Python

An example how to run stripe out of the box with wsgi from a single file. At first, please install the python stripe API, i.e. with pip: pip install --user stripe Create payment.py which creates a WSGI webserver at port 8000 out of the box html = """ <html> <body> ...

stripe-payments • Getting started with stripe-payments

Getting Guice injections on JAX-RS resources

You will need the guice-bridge in your project. @ApplicationPath("api") public class ApiRest extends ResourceConfig { @Inject public ApiRest(ServiceLocator serviceLocator, ServletContext servletContext) { packages("net.sargue.app.api"); GuiceBrid...

guice • Using Guice with Jersey 2 (JAX-RS RI)

Getting a static image, detecting items on it, and outputting the results.

Please note that this example uses OpenCV 3.1. import org.opencv.core.Mat; import org.opencv.core.MatOfRect; import org.opencv.core.Point; import org.opencv.core.Rect; import org.opencv.core.Scalar; import org.opencv.imgcodecs.Imgcodecs; import org.opencv.imgproc.Imgproc; import org.opencv.o...

opencv • Using Cascade Classifiers In Java

Detecting images from a video device

This example introduces the VideoCapture class, where we use it to take an image from a webcam and save it to an image. import org.opencv.core.Mat; import org.opencv.core.MatOfRect; import org.opencv.core.Point; import org.opencv.core.Rect; import org.opencv.core.Scalar; import org.opencv.imgc...

opencv • Using Cascade Classifiers In Java

Converting an Mat object to an BufferedImage object

This example by Daniel Baggio was taken directly from this StackExchange answer, but has been reposted for visibility. This class takes an Mat object and returns the BufferedImage object used by the javax.swing libraries. This can be used by a Graphics object to draw the image. private BufferedIma...

opencv • Using Cascade Classifiers In Java

Detections within Detections

This example uses Dice and the black spots on the dice (the pips) as our object. As the example is quite long, first explaining some key concepts is critical to understanding the example. Understanding the first example, "Getting a static image, detecting items on it, and outputting the result...

opencv • Using Cascade Classifiers In Java

Sample table for sapui5 with control and processing examples

//Create a layout var tableLayout = new sap.ui.commons.layout.MatrixLayout({ layoutFixed : false, columns : 2, width : "100%", height : "100%", widths : [ "20%","80%"] }).addStyleClass('dsAvailLayout'); sap.ui.table.Table.extend(...

sapui5 • sapui5 Table

Ajax form submition with Jquery

To submit form via Ajax with Jquery : <div id="yourPanel" th:fragment="yourFragment"> <form id="yourForm" method="POST" th:action="@{/actions/postForm}" th:object="${yourFormBean}">...

thymeleaf • Getting started with thymeleaf

Raw String Interpolation

You can use the raw interpolator if you want a String to be printed as is and without any escaping of literals. println(raw"Hello World In English And French\nEnglish:\tHello World\nFrench:\t\tBonjour Le Monde") With the use of the raw interpolator, you should see the following printed in the ...

Scala Language • String Interpolation

Explanation

Zero values or zero initialization are simple to implement. Coming from languages like Java it may seem complicated that some values can be nil while others are not. In summary from Zero Value: The Go Programming Language Specification: Pointers, functions, interfaces, slices, channels, and maps ...

Go • Zero values

Create - Controller Part

To implement the create functionality we need two actions: GET and POST. The GET action used to return view which will show a form allowing user to input data using HTML elements. If there are some default values to be inserted before user adding any data, it should be assigned to the view mode...

asp.net-mvc • CRUD operation

Create - View Part

@model ContosoUniversity.Models.Student //The Html.BeginForm helper Writes an opening <form> tag to the response. When the user submits the form, the request will be processed by an action method. @using (Html.BeginForm()) { //Generates a hidden form field (anti-for...

asp.net-mvc • CRUD operation

Details - Controller part

By the url ~/Student/Details/5 being: (~: site root, Student: Controller, Details: Action, 5: student id), it is possible to retrieve the student by its id. // GET: Student/Details/5 public ActionResult Details(int? id) { // it good practice to consider that things could go wrong...

asp.net-mvc • CRUD operation