Tutorial by Examples: r

The only major differences between this and a regular TCP connection are the private Key and the public certificate that you’ll have to set into an option object. How to Create a Key and Certificate The first step in this security process is the creation of a private Key. And what is this private ...

SolrJ comes as part of the Solr distribution since Solr 1.x. The latest Solr version can be downloaded here. From Solr-6.3.0 that is the latest version available, we need to get the following libraries and add them to our build path: /dist/apache-solr-solrj-.jar /dist/solrj-lib/ Once we're done,...

CREATE TABLE users (username text, email text); CREATE TABLE simple_users () INHERITS (users); CREATE TABLE users_with_password (password text) INHERITS (users); Our three tables look like this: users ColumnTypeusernametextemailtext simple_users ColumnTypeusernametextemailtext users_with_p...

Let's create two simple tables: CREATE TABLE users (username text, email text); CREATE TABLE simple_users () INHERITS (users); Adding columns ALTER TABLE simple_users ADD COLUMN password text; simple_users ColumnTypeusernametextemailtextpasswordtext Adding the same column to the parent ta...

With AspNetCore you can develop the application on any platform including Mac,Linux,Window and Docker. Installation and SetUp Install visual Studio Code from here Add C# extesnion Install dot net core sdk. You can install from here Now you have all the tools available. To develop the applic...

While the String.Format() method is certainly useful in formatting data as strings, it may often be a bit overkill, especially when dealing with a single object as seen below : String.Format("{0:C}", money); // yields "$42.00" An easier approach might be to simply use the To...

public class AuthenticationHandler : DelegatingHandler { /// <summary> /// Holds request's header name which will contains token. /// </summary> private const string securityToken = "__RequestAuthToken"; /// <summary> ...

Spock framework information can be found at the Spock website. There are basically three ways to use Spock in Groovy as a dependency using the Grape dependency manager : Add the following to your groovy script. @Grab(group='org.spockframework', module='spock-core', version='1.1-groovy-2.4.1'...

Main process source code index.js: const {app, BrowserWindow, ipcMain} = require('electron') let win = null app.on('ready', () => { win = new BrowserWindow() win.loadURL(`file://${__dirname}/index.html`) win.webContents.openDevTools() win.on('closed', () => { win = null ...

After launching Visual Studio 2015, go to File → New → Project. In the New Project dialog box, browse in the templates tree to Visual C# → Windows → Universal and select Blank App (Universal Windows). Next, we need to fill the form to describe the Application: Name: this is the name of the appli...

The following example shows how to instantiate a class for logging via the ServiceLoader. Service package servicetest; import java.io.IOException; public interface Logger extends AutoCloseable { void log(String message) throws IOException; } Implementations of the service The...

JavaFX provides an easy way to internationalize your user interfaces. While creating a view from an FXML file you can provide the FXMLLoader with a resource bundle: Locale locale = new Locale("en", "UK"); ResourceBundle bundle = ResourceBundle.getBundle("strings", loc...

A Resource bundles contain locale-specific objects. You can pass the bundle to the FXMLLoader during its creation. The controller must implement Initializable interface and override initialize(URL location, ResourceBundle resources) method. The second parameter to this method is ResourceBundle which...

The time for Scheduler Tasks are measured in Ticks. Under normal conditions, there are 20 ticks per second. Tasks scheduled with .scheduleSyncRepeatingTask will be run on the Main Thread Bukkit.getScheduler().scheduleSyncRepeatingTask(plugin, new Runnable() { @Override public void run(...

One can initialize a Julia array by hand, using the square-brackets syntax: julia> x = [1, 2, 3] 3-element Array{Int64,1}: 1 2 3 The first line after the command shows the size of the array you created. It also shows the type of its elements and its dimensionality (int this case Int64 ...

In Julia, Arrays have types parametrized by two variables: a type T and a dimensionality D (Array{T, D}). For a 1-dimensional array of integers, the type is: julia> x = [1, 2, 3]; julia> typeof(x) Array{Int64, 1} If the array is a 2-dimensional matrix, D equals to 2: julia> x = [1 2 ...

The Java SE Development Kit (JDK) 7 Update 10 (or later) or JDK 8 is required to install NetBeans IDE. You can download the latest update of JDK 7 and JDK 8 at http://www.oracle.com/technetwork/java/javase/downloads. The PHP and C/C++ NetBeans bundles only require the Java Runtime Environment (JRE)...

You might want to import and export your database for bacukups for example. Dont forget about the permissions. public void exportDatabase(){ try { File sd = Environment.getExternalStorageDirectory(); File data = Environment.getDataDirectory(); String currentD...

Here is an example of inserting large chunks of data at once. All the data you want to insert is gathered inside of a ContentValues array. @Override public int bulkInsert(Uri uri, ContentValues[] values) { int count = 0; String table = null; int uriType = IChatContract.MessageColu...

If you have multiple libraries in the same solution, you can add local (project) references between them: { "dependencies": { "NETStandard.Library": "1.6.0", "MyOtherLibrary": { "target": "project" } }...