Tutorial by Topics

Per Google documentation: "Interface to global information about an application environment. It allows access to application-specific resources and classes, as well as up-calls for application-level operations such as launching activities, broadcasting and receiving intents, etc." More si...

I'd like to describe the prerequisites and the steps how to build the Perl CPAN module sapnwrfc with the Strawberry Perl environment under Windows 7 x64. It should work also for all later Windows versions like 8, 8.1 and 10. I use Strawberry Perl 5.24.1.1 64 bit but it should also work with older v...

A goroutine is a lightweight thread managed by the Go runtime. go f(x, y, z) starts a new goroutine running f(x, y, z) The evaluation of f, x, y, and z happens in the current goroutine and the execution of f happens in the new goroutine. Goroutines run in the same address space, so access to sh...

This topic would cover how angular-cli project is ready for production build, what all necessary steps taken before deploying, how to create war file for project deployment and finally how to configure the apache tomcat for angular-cli project deployment.

Anonymous classes are useful when simple, one-off objects need to be created. They can be used in place of a full class definition. They can everything a normal class can: pass arguments through to their constructors, extend other classes, implement interfaces, use traits. Anonymous classes are as...

A Virtual Environment ("virtualenv") is a tool to create isolated Python environments. It keeps the dependencies required by different projects in separate places, by creating virtual Python env for them. It solves the “project A depends on version 2.xxx but, project B needs 2.xxx” dilemma...

The arrival of Java 9 brings many new features to Java's Collections API, one of which being collection factory methods. These methods allow for easy initialization of immutable collections, whether they be empty or nonempty. Note that these factory methods are only available for the following int...

When dealing with objects in an MVC app, if any object should be shown in multiple places with the same format, we'd need some kind of standardized layout. ASP.NET MVC has made this kind of standardization easy to do with the inclusion of display and editor templates. In short, display and editor te...

Semaphores are not available in C++ as of now, but can easily be implemented with a mutex and a condition variable. This example was taken from: C++0x has no semaphores? How to synchronize threads?

How to remove public from URL in Laravel, there are many answers on internet but the easiest way is described below

Devise is authentication solution for Rails. Before going any further i would like to add quick note on API. So API does not handle sessions (is stateless) which means one that provide response after you request, and then requires no further attention, which means no previous or future state is requ...

First we need to know what a MessageBox is... The MessageBox control displays a message with specified text, and can be customised by specifying a custom image, title and button sets (These button sets allow the user to choose more than a basic yes/no answer). By creating our own MessageBox we can...

ParameterDetailsfontbytesbyte array from the binary .ttf

UIFont is a class that is used for getting and setting font-related information. It inherits from NSObject and conforms to Hashable, Equatable, CVarArg and NSCopying.

Coercion happens in R when the type of objects are changed during computation either implicitly or by using functions for explicit coercion (such as as.numeric, as.data.frame, etc.).

Working with threads might need some synchronization techniques if the threads interact. In this topic, you can find the different structures which are provided by the standard library to solve these issues.