Tutorial by Examples: a

Logcat is a command-line tool that dumps a log of system messages, including stack traces when the device throws an error and messages that you have written from your app with the Log class. The Logcat output can be displayed within Android Studio's Android Monitor or with adb command line. In And...

A very common task is to create responsive navbars and to create action/footer bars that have different controls based on what page a user is on, or what role a user belongs to. Lets go over how to make these controls. Router Router.configure({ layoutTemplate: 'appLayout', }); Router.route('c...

This follwing is a pure-Blaze approach to toggling UI elements into and outof existence. Think of this as a replacement for modal dialogs. In fact, there are a number of ways to implement modal dialogs using this method (simply add background masks and animations). Document Object Model <templa...

The Database Layer First, we want to set up the Data Distribution Protocol, to make sure that we can persist data to the database, and get it to the client. Three files need to be created... one on the server, one on the client, and one shared between both. // client/subscriptions.js Meteor.subsc...

Alerts and errors are nearly the simplest of all Meteor component patterns. They're so simple, in fact, that they barely register as a pattern in of themselves. Instead of adding FlashAlert modules or patterns, all you really need to do is style a Handlebar template appropriate, add a helper, and wi...

Document Object Model Start by creating your tabs and panes in your Object Model... <template name="samplePage"> <div id="samplePage" class="page"> <ul class="nav nav-tabs"> <li id="firstPanelTab"><a href=&...

Dynamic Proxies do not really have much to do with Reflection but they are part of the API. It's basically a way to create a dynamic implementation of an interface. This could be helpful when creating mockup services. A Dynamic Proxy is an instance of an interface that is created with a so-called in...

Install Chrome by first considering which version to use, relevant if you are going to be doing Web Development: Google Chrome releases major versions about every 6 weeks and provides access to multiple versions of the product as they are being stabilized. This process is done in a series of channe...

Getting installed on Windows 10 is as easy as it's ever been, and despite (true) rumours flying around regarding Windows 10 being the last 'normal' version of Windows, it has and always will stay the same process. Installing a new version Get the windows image (Go straight to step 4 if you have ...

For efficiency, Prolog code is typically compiled to abstract machine code before it is run. Many different abstract machine architectures and variants have been proposed for efficient execution of Prolog programs. These include: WAM, the Warren Abstract Machine TOAM, an abstract machine used i...

Virtually all Prolog systems implement tail call optimization (TCO). This means that predicate calls that are in a tail position can be executed in constant stack space if the predicate is deterministic. Tail recursion optimization (TRO) is a special case of tail call optimization.

As long as you have an internet connection, you can read images from an hyperlink I=imread('https://cdn.sstatic.net/Sites/stackoverflow/company/img/logos/so/so-logo.png');

In this example we illustrate how to take a double real-type 3D matrix from MATLAB, and pass it to a C double* array. The main objectives of this example are showing how to obtain data from MATLAB MEX arrays and to highlight some small details in matrix storage and handling. matrixIn.cpp #include...

Some applications that use Hibernate generate a huge amount of SQL when the application is started. Sometimes it's better to enable/disable the SQL log in specific points when debugging. To enable, just run this code in your IDE when you are debugging the aplication: org.apache.log4j.Logger.getLog...

Generally, if we want to remove an element from an array, we need to know it's index so that we can remove it easily using remove(at:) function. But what if we don't know the index but we know the value of element to be removed! So here is the simple extension to an array which will allow us to re...

# models fit1 <- lm(mpg ~ wt, data = mtcars) fit2 <- lm(mpg ~ wt+hp, data = mtcars) fit3 <- lm(mpg ~ wt+hp+cyl, data = mtcars) # export to html texreg::htmlreg(list(fit1,fit2,fit3),file='models.html') # export to doc texreg::htmlreg(list(fit1,fit2,fit3),file='models.doc') Th...

By default, some keystrokes that are useful in Vim contradict with the keystrokes of IntelliJ. For example, ^R in Vim is 'redo', but in IntelliJ it's the shortcut for Run To decide which program interprets the keystroke, go to Preferences -> Other Settings -> Vim Emulation and choose which k...

RecyclerView will perform a relevant animation if any of the "notify" methods are used except for notifyDataSetChanged; this includes notifyItemChanged, notifyItemInserted, notifyItemMoved, notifyItemRemoved, etc. The adapter should extend this class instead of RecyclerView.Adapter. impo...

You can save the layout of your tabs and windows to standardize your work environment. The layouts menu can be found in the upper right corner of Unity Editor: Unity ships with 5 default layouts (2 by 3, 4 Split, Default, Tall, Wide) (marked with 1). In the picture above, aside from default layo...

PriorityQueue is a data structure. Like SortedSet, PriorityQueue sorts also its elements based on their priorities. The elements, which have a higher priority, comes first. The type of the PriorityQueue should implement comparable or comparator interface, whose methods decides the priorities of the ...