Tutorial by Examples

Form object package formSubmission; public class Person { private String name; private int age; public String getName() { return name; } public void setName(String name) { this.name= name; } public int getAge() { return age; ...

Create your own WSMessageSender: import java.io.IOException; import java.net.HttpURLConnection; import org.springframework.ws.transport.http.HttpUrlConnectionMessageSender; import sun.misc.BASE64Encoder; public class CustomWSMessageSender extends HttpUrlConnectionMessageSender{ @Ov...

Example for a functional view to create an object. Excluding comments and blank lines, we need 15 lines of code: # imports from django.shortcuts import render_to_response from django.http import HttpResponseRedirect from .models import SampleObject from .forms import SampleObjectForm # vie...

The above example only works if your tasks are entirely standard tasks. You do not add extra context here, for example. Let's make a more realistic example. Assume we want to add a page title to the template. In the functional view, this would work like this - with just one additional line: def cr...

The true power of generic views unfolds when you combine them with Mixins. A mixin is a just another class defined by you whose methods can be inherited by your view class. Assume you want every view to show the additional variable 'page_title' in the template. Instead of overriding the get_context...

How to center an element, column, or content inside a column works differently in Bootstrap 4. Horizontal Center text-center is still used for display:inline elements mx-auto replaces center-block to center display:block elements offset-* or mx-auto can be used to center grid columns mx-aut...

typealias StringValidator = (String) -> Boolean typealias Reductor<T, U, V> = (T, U) -> V

typealias Parents = Pair<Person, Person> typealias Accounts = List<Account>

cx_Freeze - a tool can package your project to excutable/installer after install it by pip, to package demo.py, we need setup.py below. import sys from cx_Freeze import setup, Executable # Dependencies are automatically detected, but it might need fine tuning. build_exe_options = { &...

The core idea of VLOOKUP is to look up information in a spreadsheet table and place it in another. For example, suppose this is the table in Sheet1: John 12/25/1990 Jane 1/1/2000 In Sheet2, place John, Andy, and Jane in A1, A2, and A3. In B1, to the right of John, I placed: =VL...

HeroChildComponent has two input properties, typically adorned with @Input decorations. import { Component, Input } from '@angular/core'; import { Hero } from './hero'; @Component({ selector: 'hero-child', template: ` <h3>{{hero.name}} says:</h3> <p>I, {{hero.nam...

The @HostBinding decorator allows us to programatically set a property value on the directive's host element. It works similarly to a property binding defined in a template, except it specifically targets the host element. The binding is checked for every change detection cycle, so it can change dyn...

When creating a model for a table that has a composite primary key, additional work is required on the Object for the model Entity to respect those constraints. The following example SQL table and Entity demonstrates the structure to store a review left by a customer for an item in an online store....

Spacemacs (http://spacemacs.org/) is a variant of Emacs that attempts to end the long-term conflict between Emacs and vim users, by making an Emacs that behaves like vim.

Occasionally it's useful to assign one or more ports manually vs using the defaults. Doing so can solve port availability/permissions issues or accommodate running more than one ember instance at a time. To have ember-cli attempt to identify and assign an available port, use: ember serve --port ...

First you add System.Security.Cryptography and System.IO to your project public string GetSha1Hash(string filePath) { using (FileStream fs = File.OpenRead(filePath)) { SHA1 sha = new SHA1Managed(); return BitConverter.ToString(sha.ComputeHash(fs...

first you add System.Security.Cryptography namespace to your project public string GetSha1Hash(string filePath) { using (FileStream fs = File.OpenRead(filePath)) { SHA1 sha = new SHA1Managed(); return BitConverter.ToString(sha.ComputeHash(fs)); ...

public static string TextToHash(string text) { var sh = SHA1.Create(); var hash = new StringBuilder(); byte[] bytes = Encoding.UTF8.GetBytes(text); byte[] b = sh.ComputeHash(bytes); foreach (byte a in b) { var h = a.ToString(&...

After adding the GreenDao library dependency and Gradle plugin, we need to first create an entity object. Entity An entity is a Plain Old Java Object (POJO) that models some data in the database. GreenDao will use this class to create a table in the SQLite database and automatically generate helpe...

Detailed instructions on getting azure-functions set up or installed.