Tutorial by Examples: st

Static gives a method or variable storage that is not allocated for each instance of the class. Rather, the static variable is shared among all class members. Incidentally, trying to treat the static variable like a member of the class instance will result in a warning: public class Apple { pu...

The Master directive specifies a page file as being the mater page. The basic syntax of sample MasterPage directive is: <%@ MasterPage Language="C#" AutoEventWireup="true" CodeFile="SiteMater.master.cs" Inherits="SiteMaster" %>

The MasterType directive assigns a class name to the Master property of a page, to make it strongly typed. The basic syntax of MasterType directive is: <%@ MasterType attribute="value"[attribute="value" ...] %>

This example show how you can check if a service already exists (i.e., is installed on the machine) or not. This code requires only the lowest privileges necessary, so each process can perform the check, no matter what level of security it is running at. #define UNICODE #define _UNICODE #include ...

You can also use regular expressions to split a string. For example, import re data = re.split(r'\s+', 'James 94 Samantha 417 Scarlett 74') print( data ) # Output: ['James', '94', 'Samantha', '417', 'Scarlett', '74']

You can get rid of manage.py and use the django-admin command instead. To do so, you will have to manually do what manage.py does: Add your project path to your PYTHONPATH Set the DJANGO_SETTINGS_MODULE export PYTHONPATH="/home/me/path/to/your_project" export DJANGO_SETTINGS_MODULE...

If you have a vsix file, you can install it by running the file. Get the vsix file (this is the extension installer) Run the file. In the window that opens, confirm the installation.

In Visual studio go to Tools > Extensions and updates... In the window that opens go to online Select Visual Studio Gallery You can search for an extension on the search box at the upper right corner Select the extension you want to add Click on download. Once download is complete, click...

In a non-strict-mode scope, when a variable is assigned without being initialized with the var, const or the let keyword, it is automatically declared in the global scope: a = 12; console.log(a); // 12 In strict mode however, any access to an undeclared variable will throw a reference error: &...

Category theory is a modern mathematical theory and a branch of abstract algebra focused on the nature of connectedness and relation. It is useful for giving solid foundations and common language to many highly reusable programming abstractions. Haskell uses Category theory as inspiration for some o...

Using Kestrel you can specify port using next approaches: Defining ASPNETCORE_URLS environment variable. Windows SET ASPNETCORE_URLS=https://0.0.0.0:5001 OS X export ASPNETCORE_URLS=https://0.0.0.0:5001 Via command line passing --server.urls parameter dotnet run --server.urls=http...

If you have a string that contains Python literals, such as strings, floats etc, you can use ast.literal_eval to evaluate its value instead of eval. This has the added feature of allowing only certain syntax. >>> import ast >>> code = """(1, 2, {'foo': 'bar'})&quot...

It is not possible to use eval or exec to execute code from untrusted user securely. Even ast.literal_eval is prone to crashes in the parser. It is sometimes possible to guard against malicious code execution, but it doesn't exclude the possibility of outright crashes in the parser or the tokenizer....

Detailed instructions on getting forms set up or installed.

First of all, you cannot "install" Java EE. Java EE consists of a number of specifications. You can install implementations of those specifications however. Depending on your needs, there are lots of possibilities. To install most (or all) of the specifications, you can choose a Java EE...

/* finds the next instance of needle in haystack zbpos: the zero-based position to begin searching from haystack: the string to search in needle: the string that must be found returns the next match of `needle` in `haystack`, or -1 if not found */ int findnext(int zbpos, const cha...

You can choose between major distributions of LaTeX: TeX Live (Windows, Linux, and OS X), the standard, cross-platform distribution. MacTeX (Mac) A packaged version of TeX Live made for OS X with some Mac-specific tools MiKTeX (Windows) A separate distribution entirely that All distributions...

In Scala operators (such as +, -, *, ++, etc.) are just methods. For instance, 1 + 2 can be written as 1.+(2). These sorts of methods are called 'infix operators'. This means custom methods can be defined on your own types, reusing these operators: class Matrix(rows: Int, cols: Int, val data: Seq[...

To make a custom pipe available application wide, During application bootstrap, extending PLATFORM_PIPES. import { bootstrap } from '@angular/platform-browser-dynamic'; import { provide, PLATFORM_PIPES } from '@angular/core'; import { AppComponent } from './app.component'; import { MyPipe }...

Detailed instructions on getting WSO2 set up or installed. Almost all the WSO2 Products can be started using the wso2server.sh/bat files that can be found in the <Product_Home>/bin folder of each product. When you run the sh/bat script it will star the particular WSO2 product with default set...