Tutorial by Topics: ion

In my path to studying programming there have been simple, but interesting problems to solve as exercises. One of those problems was to rotate an array(or another collection) by a certain value. Here I will share with you a simple formula to do it.

It is sometimes useful to get the maven properties, such as the current version, in code. Here are some ways to to it.

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...

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...

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.

This topic is about the integration of third-party advertisement services, such as Unity Ads or Google AdMob, into a Unity project. This applies to Unity Ads. Make sure that Test Mode for Unity Ads is enabled during development You, as the developer, are not allowed to generate impressio...

Laravel requires some folders to be writable for the web server user.

Excel-VBA Optimization refers also to coding better error handling by documentation and additional details. This is shown here. *) Line numbers represent are integers, that is a signed 16 bit data type in the range of -32,768 to 32,767, otherwise you produce an overflow. Usually line numbers a...

Am new to Mule and wanted to share how to connect to Database and retrieve Values.

A lot of time from C++ developers is spent debugging. This topic is meant to assist with this task and give inspiration for techniques. Don't expect an extensive list of issues and solutions fixed by the tools or a manual on the mentioned tools. This topic ain't complete yet, examples on follo...

Activity recognition is the detection of a user's physical activity in order to perform certain actions on the device, such as taking points when a drive is detected, turn wifi off when a phone is still, or putting the ring volume to max when the user is walking.

Groovy has more ways of looping besides supporting the Java iterations. Groovy extends the Integer class with the step(), upto() and times() methods. These methods take a closure as a parameter. In the closure we define the piece of code we want to be executed several times. It also adds each() an...

How to update the version of MongoDB on your machine on different platforms and versions. If you have an older version of MongoDB, you must upgrade the whole path to the newest version. For example, if you are running version 3.0 and want to get version 3.4, you must upgrade 3.0->3.2->3....

InlineDescription$numberSubstitutes the substring matched by group number.${name}Substitutes the substring matched by a named group name.$$Escaped '$' character in the result (replacement) string.$& ($0)Replaces with the whole matched string.$+ ($&)Substitutes the matched text to the last...

Includes pymongo query examples to filter documents by timestamp encapsulated in ObjectId

Remember CodeIgniter is a development Framework. It doesn't strive to make you're application secure. It merely gives you the tools to do it yourself. If you look at CI's Security page, it pretty clear they are expecting the developer to understand Application Security and build it into their applic...

OptionParser can be used for parsing command line options from ARGV.

The language class in CodeIgniter provides an easy way to support multiple languages for internationalization. To some extent, we can use different language files to display text in many different languages.