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Float data type The float data type is a single-precision 32-bit IEEE 754 floating point. Float overflow Maximum possible value is 3.4028235e+38 , When it exceeds this value it produces Infinity float f = 3.4e38f; float result = f*2; System.out.println(result); //Infinity Float Und...

Step 1: Add the dependency of latest ACRA AAR to your application gradle(build.gradle). Step 2: In your application class(the class which extends Application; if not create it) Add a @ReportsCrashes annotation and override the attachBaseContext() method. Step 3: Initialize the ACRA class in your...

We may forget to apply the Antiforgery attribute for each POST request so we should make it by default. This sample will make sure Antiforgery filter will always be applied to every POST request. Firstly create new AntiForgeryTokenFilter filter: //This will add ValidateAntiForgeryToken Attribute t...

Traversing from the root node to a descendant element using the child axis: /child::html/child::body/child::div/child::span Since the child axis is the default axis, this can be abbreviated to: /html/body/div/span

The descendant and descendant-or-self axes can be used to find all descendant elements of a node at any depth. In contrast, the child axis only traverses immediate children. /child::html/descendant::span /child::html/descendant-or-self::* The double slash // is a shortcut for /descendant-or-sel...

The parent axis contains only the parent of a node. The following expression selects the html element by taking a detour over the body element: /child::html/child::body/parent::html .. is a shortcut for parent::node() The ancestor and ancestor-or-self axes traverse all ancestors of a node. The ...

The self axis only contains the context node itself. The expression . is a shortcut for self::node() and always matches the context node. The . shortcut is useful for enumerating descendants of the context node. The following expressions are equivalent: .//span self::node()/descendant-or-self::nod...

The following-sibling and preceding-sibling axes contain the siblings before or after the context node, and the following and preceding axes contain all nodes in the document before or after the context node, but: None of these axes contain attribute or namespace nodes. The following axis doesn'...

The attribute and namespace axes contain all attribute and namespace nodes of an element. The shortcut @ stands for attribute::, so the following are equivalent: child::div/attribute::class div/@class

Why do we need this? The current way to do unit testing in Xamarin.Forms is via a platform runner, so your test will have to run within an ios, android, windows or mac UI environment : Running Tests in the IDE Xamarin also provides awesome UI testing with the Xamarin.TestCloud offering, but when ...

To add to the first example, in order to test navigation statements that occurs within the application, we need to provide the ViewModel with a hook to the Navigation. To achieve this: Add the package SpecFlow.Xamarin.Forms.IViewModel from nuget to your PCL Xamarin.Forms project Implement the IV...

First you need to implement Realm at the start of your class using Realms; Then to print the location to the console : Console.WriteLine( RealmConfiguration.PathToRealm() ); Or if you're using DefaultConfiguration, you can use : Console.WriteLine( RealmConfiguration.DefaultConfiguration.Dat...

Bootstrap uses a Grid System having rows and columns In the Grid system, you are using a row class to create a horizontal box with a total of 12 columns of size 1 unit each for different screen size vertically. If you do not want to use all 12 columns individually, you can group the columns togeth...

First, there is a really nice wrapper for setting up n on your system. Just run: curl -L https://git.io/n-install | bash to install n. Then install binaries in a variety of ways: latest n latest stable n stable lts n lts Any other version n <version> e.g. n 4.4.7 If this version ...

const options = require("commander"); options .option("-v, --verbose", "Be verbose"); options .command("convert") .alias("c") .description("Converts input file to output file") .option("-i, --in-file <file_name&...

const options = require("commander"); options .option("-v, --verbose") .parse(process.argv); if (options.verbose){ console.log("Let's make some noise!"); }

Step 1: Create a bluemix account Create an account at https://console.ng.bluemix.net/registration/ This will set you up with a 30 day trial. You don't have to pay anything for the free resources and you don't have to set up billing until the end of your trial (though not all services will be avail...

Assuming a abstract class: class ILogger { virtual ~ILogger() = default; virtual Log(const std::string&) = 0; }; Instead of void doJob(ILogger* logger) { if (logger) { logger->Log("[doJob]:Step 1"); } // ... if (logger) { logge...

What is UITableView? UITableView is a most frequently used user interface object that presents data in a scrollable list of multiple rows in a single column that can also be divided into sections.It allows vertical scrolling only and is a subclass of UIScrollView. Why do we use UITableView? We ca...

NATURAL JOIN requires no explitic join condition; it builds one based on all the fields with the same name in the joined tables. create table tab1(id number, descr varchar2(100)); create table tab2(id number, descr varchar2(100)); insert into tab1 values(1, 'one'); insert into tab1 values(2, '...