Tutorial by Examples: p

Detailed instructions on getting stored-procedures set up or installed.

Let's say we have a String parameter and we want to split it by comma my_param="foo,bar,bash" To split this string by comma we can use; IFS=',' read -r -a array <<< "$my_param" Here, IFS is a special variable called Internal field separator which defines the char...

The most popular operating system for the Raspberry Pi is a Debian based Raspbian. It is officially supported by the Raspberry Pi Foundation. Raspbian can be downloaded from official Raspberry Pi site in one of two variants: With desktop environment Lite- Minimal image Starting September 20...

It is possible to create own Linux distribution using Yocto Project. For Raspberry Pi- there is a specific layer meta-raspberrypi that needs to be used to create an image.

Detailed instructions on getting plone set up or installed.

JUnit can also be used to test if a method throws a specific exception for a given input. In this example we will test if the following method really throws an exception if the Boolean format (input) is not recognized/unknown: public static boolean parseBoolean(@NonNull String raw) throws IllegalA...

JUnit defines quite some assertEquals methods at least one for each primitive type and one for Objects is available. These methods are by default not directly available to call and should be called like this: Assert.assertEquals. But because these methods are used so often people almost always use a...

Terminal Commands: rails g model Product name:string quantity:integer price:decimal{12,2} rake db:migrate Lates create controller. Terminal Commands: rails g controller Products Controller Code: class HistoriesController < ApplicationController def create file = Dir.glob(...

private final String COLLECTION_NAME = "myCollection"; private final String ZOOKEPER_CLIENT_TIMEOUT_MS = "1000000" private Map<String, String> getShardLeaders(CloudSolrServer cloudSolrServer) throws InterruptedException, KeeperException { Map<String, Stri...

Data mining is a wide topic, and the term is (unfortunately) very liberally thrown at any topic that involves data processing. Because of this this "documentation" should never have been created in the first place, because it overlaps with other topcis too much, and everything is better di...

When dealing with large configuration sets of value, it might become quite unhandy to load them one buy one. Option model which comes with asp.net offers a convenient way to map a section to a dotnet poco: For instance, one might hydrate StorageOptions directly from a configuration section b addin...

To use OpenGL ES in your application you must add this to the manifest: <uses-feature android:glEsVersion="0x00020000" android:required="true"/> Create your extended GLSurfaceView: import static android.opengl.GLES20.*; // To use all OpenGL ES 2.0 methods and constants...

In order to be able to directly deploy web project changes to an Web Server, the following steps must be followed. If target server has Internet access, the process is quite simple, as Microsoft has a Web Platform package to do almost everything that is needed. Cleanup Make sure that C:\Progra...

Download the desired version of WordPress from www.wordpress.org to your local computer and unzip the file. Also keep a backup of your current version... just in case. Connect to your website with your favorite FTP client (FileZilla is popular and easy, but any FTP client will be fine)...

import com.couchbase.client.core.endpoint.SSLEngineFactory import com.couchbase.client.java.env.DefaultCouchbaseEnvironment import com.couchbase.client.java.CouchbaseCluster object CouchbaseConnection extends App { //Create default environment object. //Set the keystone file path(downlo...

This example creates a simple window with a button and a line-edit in a layout. It also shows how to connect a signal to a slot, so that clicking the button adds some text to the line-edit. import sys from PyQt5.QtWidgets import QApplication, QWidget if __name__ == '__main__': app ...

Detailed instructions on getting pyqt4 set up or installed. Windows Link Mac Link Linux Link If you want to install the version specific to your system python version and you system configuration(32-bit or 64-bit) then go to this link and download and install the package. You can install the...

The Assets folder is the most common place to store your GLSL-ES shader files. To use them in your OpenGL ES application you need to load them to a string in the first place. This functions creates a string from the asset file: private String loadStringFromAssetFile(Context myContext, String filePa...

At the very core, your entity main DAC must have GUID column (NoteID) to reference CSAnswers table and must have field that identify the class of the Entity. We will make use of Order Type to define list of attributes to gather particular order type-specific information. Create a Graph Extension f...

While using Image/Colour as an background in a CardView, You might end up with slight white paddings (If default Card colour is white) on the edges. This occurs due to the default rounded corners in the Card View. Here is how to avoid those margins in Pre-lollipop devices. We need to use an attribu...