Tutorial by Examples: od

ExpandoObject (the System.Dynamic namespace) is a class that was added to the .Net Framework 4.0. This class allows us to dynamically add and remove properties onto an object at runtime. By using Expando object we can add our model classes into dynamically created Expando object. Following example e...

class Simple { } class Test { void printName(Object obj){ Class c = obj.getClass(); System.out.println(c.getName()); } public static void main(String args[]){ Simple s = new Simple(); Test t = new Test(); ...

object CommonUtils { var anyname: String ="Hello" fun dispMsg(message: String) { println(message) } } From any other class, just invoke the variable and functions in this way: CommonUtils.anyname CommonUtils.dispMsg("like static call")

Deque deque = new LinkedList(); //Adding element at tail deque.add("Item1"); //Adding element at head deque.addFirst("Item2"); //Adding element at tail deque.addLast("Item3");

Thanks to encoders and decoders, the JSR 356 offers a object oriented communication models. Messages definition Let's assume all received messages have to be transformed by the server before being sent back to all connected sessions: public abstract class AbstractMsg { public abstract void t...

// sample token string taken from the New example tokenString := "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJmb28iOiJiYXIiLCJuYmYiOjE0NDQ0Nzg0MDB9.u1riaD1rW97opCoAuRCTy4w58Br-Zk-bh7vLiRIsrpU" // Parse takes the token string and a function for looking up the key. The latter is especially ...

// Create a new token object, specifying signing method and the claims // you would like it to contain. token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{ "foo": "bar", "nbf": time.Date(2015, 10, 10, 12, 0, 0, 0, time.UTC).Unix(), }) // Si...

How to correctly extract text from nodes is one of the most popular questions we see, and almost invariably is made more difficult by misusing Nokogiri's "searching" methods. Nokogiri supports using CSS and XPath selectors. These are equivalent: doc.at('p').text # => "foo"...

trait Show[T] { def show(t: T): String } object Show extends ProductTypeClassCompanion[Show] { def apply[T](implicit T: Show[T]) = T def from[T](f: T => String): Show[T] = new Show[T] { def show(t: T): String = f(t) } implicit val string = from[String](_.reverse) ...

To make your APK file as small as possible, you should enable shrinking to remove unused code and resources in your release build. This page describes how to do that and how to specify what code and resources to keep or discard during the build. Code shrinking is available with ProGuard, which dete...

HTML (classes used are based on Semantic-UI) <div id="app" class="ui grid"> <div class="row"> <div class="column"> <div class="ui label">Vechicle Make</div> <select class="ui dropdown"...

As recently Apple rolled out iOS11 and Xcode-9, we can now debug apps on devices without connecting devices to Xcode through USB. We can take advantage of wireless debugging feature added to this Xcode-9. To enable wireless debugging, we have to configure some steps in Xcode. 1 First connect the ...

Given a rod of length n inches and an array of length m of prices that contains prices of all pieces of size smaller than n. We have to find the maximum value obtainable by cutting up the rod and selling the pieces. For example, if length of the rod is 8 and the values of different pieces are given ...

Node js code Sample to start this topic is Node.js server communicating with Arduino via serialport. npm install express --save npm install serialport --save Sample app.js: const express = require('express'); const app = express(); var SerialPort = require("serialport"); var po...

This method extends the jQuery prototype ($.fn) object to provide new custom methods that can be chained to the jQuery() function. For example: <div>Hello</div> <div>World!</div> <script> jQuery.fn.extend({ // returns combination of div texts as a result g...

Background Model Listener hook's are a type of Liferay plugin that listens for events taken on an model and executes code in response. Model Listener hooks are similar to Custom Struts Action hooks in that they respond to an action taken in the portal. However while Struts actions respond to an a...

CHMOD Calculation CHMOD is binary. _ / _ _ _ / _ _ _ / _ _ _ = _/4+2+1/4+2+1/4+2+1 = 777 = _/rwx/rwx/rwx = 777 Therefore _rwx = _/4+2+1 = 7 D / _ _ _ / _ _ _ / _ _ _ (‘D’ = directory, another use is L = Link) So e.g. _rwxr_xr_x = _/rwx/rx/r_x = 755

BottomSheet DialogFragment opens up in STATE_COLLAPSED by default. Which can be forced to open to STATE_EXPANDEDand take up the full device screen with help of the following code template. @NonNull @Override public Dialog onCreateDialog(Bundle savedInstanceState) { BottomSheetDialog dialog = ...

At first initilize the firebase sdk and admin SDK const functions = require('firebase-functions'); const admin = require('firebase-admin'); admin.initializeApp({ credential: admin.credential.cert({ //your admin credential certificate generated from the console. Follow this [link][1]...

REPORT z_template. CLASS lcl_program DEFINITION ABSTRACT FINAL. PUBLIC SECTION. CLASS-METHODS start_of_selection. CLASS-METHODS initialization. CLASS-METHODS end_of_selection. ENDCLASS. CLASS lcl_program IMPLEMENTATION. METHOD initialization. ENDMETHOD. ...