Tutorial by Examples: e

Convert blocking method to asynchonous

The following method will take a second or two depending on your connection to retrieve a web page and count the text length. Whatever thread calls it will block for that period of time. Also it rethrows an exception which is useful later on. public static long blockingGetWebPageLength(String urlS...

Java Language • CompletableFuture

Create and push tag(s) in GIT

Create a tag: To create a tag on your current branch: git tag < tagname > This will create a local tag with the current state of the branch you are on. To create a tag with some commit: git tag tag-name commit-identifier This will create a local tag with the commit-identifier...

Git • Git Tagging

Simple Example of CompletableFuture

In the example below, the calculateShippingPrice method calculates shipping cost, which takes some processing time. In a real world example, this would e.g. be contacting another server which returns the price based on the weight of the product and the shipping method. By modeling this in an async ...

Java Language • CompletableFuture

Set different locale for md-datepicker

This example requires importing DateAdapter. import {DateAdapter} from '@angular/material'; datepicker.component.html: <md-input-container> <input mdInput [mdDatepicker]="picker" placeholder="Choose a date"> <button mdSuffix [mdDatepickerToggle]="pi...

angular-material2 • md-datepicker

Painfull listener for getting notice, when the view is completely drawn now is so simple and awesome with Kotlin's extension

mView.afterMeasured { // inside this block the view is completely drawn // you can get view's height/width, it.height / it.width } Under the hood inline fun View.afterMeasured(crossinline f: View.() -> Unit) { viewTreeObserver.addOnGlobalLayoutListener(object : ViewTreeObserver.OnGlob...

Kotlin • Kotlin Android Extensions

Simple coroutine which delay's 1 second but not blocks

(from official doc) fun main(args: Array<String>) { launch(CommonPool) { // create new coroutine in common thread pool delay(1000L) // non-blocking delay for 1 second (default time unit is ms) println("World!") // print after delay } println("He...

Kotlin • coroutines

Handling Glide image load failed

Glide .with(context) .load(currentUrl) .into(new BitmapImageViewTarget(profilePicture) { @Override protected void setResource(Bitmap resource) { RoundedBitmapDrawable circularBitmapDrawable = RoundedBitmapDrawableFactory.create(context.g...

Android • Glide

See the files changed in a specific commit

git diff-tree --no-commit-id --name-only -r COMMIT_ID

Git • diff-tree

[Introductory] Basic usage, SimpleRouter

Automatic routing for the DRF, can be achieved for the ViewSet classes. Assume that the ViewSet class goes by the name of MyViewSet for this example. To generate the routing of MyViewSet, the SimpleRouter will be utilized. On myapp/urls.py: from rest_framework import routers router = ...

django-rest-framework • Routers

.Net Related Acronyms

Please note that some terms like JIT and GC are generic enough to apply to many programming language environments and runtimes. CLR: Common Language Runtime IL: Intermediate Language EE: Execution Engine JIT: Just-in-time compiler GC: Garbage Collector OOM: Out of memory STA: Single-threaded ...

.NET Framework • Acronym Glossary

Sending patches by mail

Suppose you’ve got a lot of commit against a project (here ulogd2, official branch is git-svn) and that you wan to send your patchset to the Mailling list [email protected]. To do so, just open a shell at the root of the git directory and use: git format-patch --stat -p --raw --signoff --subject...

Git • git send-email

Usage

git diff-tree [--stdin] [-m] [-c] [--cc] [-s] [-v] [--pretty] [-t] [-r] [--root] [<common-diff-options>] <tree-ish> [<tree-ish>] [<path>...] OptionExplanation-rdiff recursively--rootinclude the initial commit as diff against /dev/null

Git • diff-tree

Run PowerShell Script in Scheduled Task

Creates a scheduled task that executes immediately, then on start up to run C:\myscript.ps1 as SYSTEM $ScheduledTaskPrincipal = New-ScheduledTaskPrincipal -UserId "SYSTEM" -LogonType ServiceAccount $ScheduledTaskTrigger1 = New-ScheduledTaskTrigger -AtStartup $ScheduledTaskTrigger2 = New...

PowerShell • Scheduled tasks module

Hello World

Create an HTML file like below. In the script tag, either you can use CDN link or from your local like <script type="text/javascript" src="dojo/dojo/dojo.js" data-dojo-config="async:true"> <!DOCTYPE html> <html> <head> <met...

dojo • Hello Dojo

Moving Average of last 30 Items

Moving Average of last 30 Items sold SELECT value_column1, ( SELECT AVG(value_column1) AS moving_average FROM Table1 T2 WHERE ( SELECT COUNT(*) FROM Table1 T3 WHERE date_column1 BETWEEN T2.date_column1...

Microsoft SQL Server • Window functions

Example to Import Data without a Format File(using Native Format )

REM Truncate table (for testing) SQLCMD -Q "TRUNCATE TABLE TestDatabase.dbo.myNative;" REM Import data bcp TestDatabase.dbo.myNative IN D:\BCP\myNative.bcp -T -n REM Review results SQLCMD -Q "SELECT * FROM TestDatabase.dbo.myNative;"

Microsoft SQL Server • bcp (bulk copy program) Utility

Adapter (UML & example situation)

To make the use of the adapter pattern and the kind of situation when it may be applied more imaginable, a small, simple and very concrete example is given here. There will be no code in here, just UML and a description of the example situation and its problem. Admittedly, the UML content is writte...

Design patterns • Adapter

Installation or Setup

Detailed instructions on getting sdl-2 set up or installed.

sdl-2 • Getting started with sdl-2

Basic Usage

There are two basic ways that the asset pipeline is used: When running a server in development mode, it automatically pre-processes and prepares your assets on-the-fly. In production mode, you’ll probably use it to pre-process, versionize, and compress and compile your assets. You can do s...

Ruby on Rails • Asset Pipeline

Install JavaFX and Demos

For very first step please make sure your java version is based on Oracle's JDK since the OpenJDP does not support JavaFX yet. So, go to the Oracle Java download page and download JDK suitable for your operating system and computer architecture. If you want to study Oracle's java examples, find th...

javafx-8 • Getting started with javafx-8