Tutorial by Examples: me

Date and Time operators

There are basically two operators for date, datetime values. + and - are overloaded (probably a C term) to do date/datetime math: OperatorDescription+Adds days (date) or seconds (datetime) to a date/datetime value.-Gets the difference of two date/datetime values. Subtracts days (date) or seconds (d...

visual-foxpro • Operators

Rounded label with a custom renderer for Frame (PCL & iOS parts)

First step : PCL part using Xamarin.Forms; namespace ProjectNamespace { public class ExtendedFrame : Frame { /// <summary> /// The corner radius property. /// </summary> public static readonly BindableProperty CornerRadiusProperty = ...

Xamarin.Forms • Custom Renderers

Accessing Barometer to get relative altitude

Swift Import the Core Motion library: import CoreMotion Next, we need to create a CMAltimeter object, but a common pitfall is to create it in the viewDidLoad(). If done that way, the altimeter won’t be accessible when we need to call a method on it. Nevertheless, go ahead and create your CMAlti...

iOS • Core Motion

Override default response messages

Springfox defines a set default response messages that are applied to all API controllers by default. This includes e.g. 201 - Created and 204 - No Content, as well as several 40x responses. There might be cases, in which the default response messages don't apply for your API. You have to build-in p...

swagger • springfox

Hide/Show HTML Elements

This example hide show html elements. <!DOCTYPE html> <html ng-app="myDemoApp"> <head> <script src="https://code.angularjs.org/1.5.8/angular.min.js"></script> <script> function HideShowController() { var vm = th...

AngularJS • Use of in-built directives

Function With Parameters

call :tohex 14 result rem More code... :tohex <innum> <outvar> set dec=%1 set outvar=%~2 rem %n and %~n are functionally identical, but %~n is slightly safer. goto :eof This takes the additional parameters from the call as if the function was a separate Batch file. Note: the ...

batch-file • Functions

Pre-Steps needed in order to use Entity Framework 6.1.3 with PostgresSql using Npgsqlddexprovider

1)Took backup of Machine.config from locations C:\Windows\Microsoft.NET\Framework\v4.0.30319\Config and C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Config 2)Copy them to different location and edit them as a)locate and add under <system.data> <DbProviderFactories> ...

Entity Framework • Entity-Framework with Postgresql

Server Installation & Implementation

GraphQL.js GraphQL.js is a JavaScript reference implementation for GraphQL. You can install it via npm: Initialize npm in your project if you have not done so already: npm init Install GraphQL.js from npm: npm install --save graphql Example Server var { graphql, buildSchema } = require('gra...

graphql • Getting started with graphql

Adding the DayNight theme to an app

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...

Android • DayNight Theme (AppCompat v23.2 / API 14+)

The try-finally and try-catch-finally statements

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...

Java Language • Exceptions and exception handling

A template with a parameter pack

template<class ... Types> struct Tuple {}; A parameter pack is a template parameter accepting zero or more template arguments. If a template has at least one parameter pack is a variadic template.

C++ • Parameter packs

Expansion of a parameter pack

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 .....

C++ • Parameter packs

The 'throws' clause in a method declaration

Java's checked exception mechanism requires the programmer to declare that certain methods could throw specifed checked exceptions. This is done using the throws clause. For example: public class OddNumberException extends Exception { // a checked exception } public void checkEven(int number) ...

Java Language • Exceptions and exception handling

MediaTypeFormatter Basic Information

MediaTypeFormatter is an abstract class from which JsonMediaTypeFormatter and XmlMediaTypeFormatter classes inherit from. Here, JsonMediaTypeFormatter class handles JSON objects and XmlMediaTypeFormatter class handles XML objects. Return only JSON irrespective of the Accept Header value: To return...

asp.net-web-api • ASP.NET Web API MediaTypeFormatter

Create Table in Java using Document API

In the following example we will be creating a table called Membership using the AWS Java SDK for DynamoDB. The table will consist of items that represent team assignments. The table will be partitioned by TeamID. Each team will have multiple members, identified by the MemberID (as a sort key). AWS...

amazon-dynamodb • How to create a DynamoDB Table

Awarding Achievements

Player player; //The player you want to award your achievement with Achievement achievement; //The achievement you want to award your player player.awardAchievement(achievement); //Awarding the achievement Checking if player has achievement: Player player; Achievement achievement...

bukkit • Manipulating Achievements

C# Implementation

public class BucketSort { public static void SortBucket(ref int[] input) { int minValue = input[0]; int maxValue = input[0]; int k = 0; for (int i = input.Length - 1; i >= 1; i--) { if (input[i] > maxValue) maxValue = input...

algorithm • Bucket Sort

To get out of a frame using C#

To switch focus to either main document or first frame of the page. You have to use below syntax. webDriver.SwitchTo().DefaultContent();

selenium-webdriver • Switching Frames

This article covers example showing how to create report using memory records:

This example shows how to populate report with data returned by a data view delegate. During the exercise, we will develop an inquiry screen showing list of Sales Orders between two dates. Data view delegate will be used to populate Sales Order information. Prerequisites: We start with declara...

acumatica • Populating report with data through code

Implementation in Java

public class MyBubbleSort { public static void bubble_srt(int array[]) {//main logic int n = array.length; int k; for (int m = n; m >= 0; m--) { for (int i = 0; i < n - 1; i++) { k = i + 1; if (array[i] > arr...

algorithm • Bubble Sort