Tutorial by Examples: a

Installation or Setup

To prepare your web site or web application to use Kendo UI, simply add the style and script files in the <head> section of your page. CDN services are provided for the minified versions of official Kendo UI releases, for both HTTP and HTTPS protocols. JQuery is also required to use Kendo UI...

kendo-ui • Getting started with kendo-ui

Singleton Class

What is a Singleton Class? A singleton class returns the same instance no matter how many times an application requests it. Unlike a regular class, A singleton object provides a global point of access to the resources of its class. When to Use Singleton Classes? Singletons are used in situations ...

Objective-C Language • Classes and Objects

Create a box-and-whisker plot with boxplot() {graphics}

This example use the default boxplot() function and the irisdata frame. > head(iris) Sepal.Length Sepal.Width Petal.Length Petal.Width Species 1 5.1 3.5 1.4 0.2 setosa 2 4.9 3.0 1.4 0.2 setosa 3 4.7 3.2 ...

R Language • boxplot

Creating a new program using Mono

First install Mono by going through the install instructions for the platform of your choice as described in their installation section. Mono is available for Mac OS X, Windows and Linux. After installation is done, create a text file, name it HelloWorld.cs and copy the following content into it: ...

C# Language • Getting started with C# Language

Drop Constraint

ALTER TABLE Employees DROP CONSTRAINT DefaultSalary This Drops a constraint called DefaultSalary from the employees table definition. Note:- Ensure that constraints of the column are dropped before dropping a column.

SQL • ALTER TABLE

Add Constraint

ALTER TABLE Employees ADD CONSTRAINT DefaultSalary DEFAULT ((100)) FOR [Salary] This adds a constraint called DefaultSalary which specifies a default of 100 for the Salary column. A constraint can be added at the table level. Types of constraints Primary Key - prevents a duplicate record in...

SQL • ALTER TABLE

Using pointer parameters to return multiple values

A common pattern in C, to easily imitate returning multiple values from a function, is to use pointers. #include <stdio.h> void Get( int* c , double* d ) { *c = 72; *d = 175.0; } int main(void) { int a = 0; double b = 0.0; Get( &a , &b ); pr...

C Language • Function Parameters

Multiple Inheritance

Multiple inheritance is a feature that allows one class to inherit from multiple classes(i.e., more than one parent). Ruby does not support multiple inheritance. It only supports single-inheritance (i.e. class can have only one parent), but you can use composition to build more complex classes using...

Ruby Language • Inheritance

Installation or Setup

Executable File Download the .exe from http://dev.sitecore.net/ and double-click to start. This .exe will do everything for you - attach databases, modify host file, and set folder permissions. The only downside is that it leaves an entry in the registry under [HKEY_LOCAL_MACHINE\SOFTWARE\Sitecore...

sitecore • Getting started with sitecore

Construct a string from Array

The String.Join method will help us to construct a string From array/list of characters or string. This method accepts two parameters. The first one is the delimiter or the separator which will help you to separate each element in the array. And the second parameter is the Array itself. String from...

C# Language • Common String Operations

Formatting using ToString

Usually we are using String.Format method for formatting purpose, the.ToString is usually used for converting other types to string. We can specify the format along with the ToString method while conversion is taking place, So we can avoid an additional Formatting. Let Me Explain how it works with d...

C# Language • Common String Operations

Finalization

A Java object may declare a finalize method. This method is called just before Java releases the memory for the object. It will typically look like this: public class MyClass { //Methods for the class @Override protected void finalize() throws Throwable { // Cleanup co...

Java Language • Java Memory Management

Manually triggering GC

You can manually trigger the Garbage Collector by calling System.gc(); However, Java does not guarantee that the Garbage Collector has run when the call returns. This method simply "suggests" to the JVM (Java Virtual Machine) that you want it to run the garbage collector, but does not ...

Java Language • Java Memory Management

Enums with Abstract Methods

Enums can define abstract methods, which each enum member is required to implement. enum Action { DODGE { public boolean execute(Player player) { return player.isAttacking(); } }, ATTACK { public boolean execute(Player player) { re...

Java Language • Enums

Default Values for Properties

Setting a default value can be done by using Initializers (C#6) public class Name { public string First { get; set; } = "James"; public string Last { get; set; } = "Smith"; } If it is read only you can return values like this: public class Name { pu...

C# Language • Properties

Parallel.ForEach

An example that uses Parallel.ForEach loop to ping a given array of website urls. static void Main() { string [] urls = { "www.stackoverflow.com", "www.google.net", "www.facebook.com", "www.twitter.com" ...

C# Language • Task Parallel Library

Parallel.For

An example that uses Parallel.For loop to ping a given array of website urls. static void Main() { string [] urls = { "www.stackoverflow.com", "www.google.net", "www.facebook.com", "www.twitter.com" }; ...

C# Language • Task Parallel Library

Parallel.Invoke

Invoking methods or actions in parallel (Parallel region) static void Main() { string [] urls = { "www.stackoverflow.com", "www.google.net", "www.facebook.com", "www.twitter.com" }; System.Thr...

C# Language • Task Parallel Library

Installation

To start development with Elm, you need to install a set of tools called elm-platform. It includes: elm-make, elm-reactor, elm-repl and elm-package. All of these tools are available through CLI, in other words you can use them from your terminal. Pick one of the following methods to install Elm: ...

Elm Language • Getting started with Elm Language

Interactive Rebase

This example aims to describe how one can utilize git rebase in interactive mode. It is expected that one has a basic understanding of what git rebase is and what it does. Interactive rebase is initiated using following command: git rebase -i The -i option refers to interactive mode. Using inte...

Git • Rebasing