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A simple EntitySystem that processes each entity of a given family in the order specified by a comparator and calls processEntity() for each entity every time the EntitySystem is updated. This is really just a convenience class as rendering systems tend to iterate over a list of entities in a sort...

CREATE TABLE XtoY ( # No surrogate id for this table x_id MEDIUMINT UNSIGNED NOT NULL, -- For JOINing to one table y_id MEDIUMINT UNSIGNED NOT NULL, -- For JOINing to the other table # Include other fields specific to the 'relation' PRIMARY KEY(x_id, y_id), --...

One can verify whether a method was called on a mock by using Mockito.verify(). Original mock = Mockito.mock(Original.class); String param1 = "Expected param value"; int param2 = 100; // Expected param value //Do something with mock //Verify if mock was used properly Mockito.veri...

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Hide/show printed information: Control verbosity of the logging: Disable/enable opening log window when starting run/debug application

Factory Method is one of creational design patterns. It is used to deal with the problem of creating objects without specifying exact result type. This document will teach you how to use Factory Method DP properly. Let me explain the idea of it to you on a simple example. Imagine you're working in ...

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set alpha {a 1 b 2 c 3} dict get $alpha b # => 2 dict get $alpha d # (ERROR) key "d" not known in dictionary If dict get is used to retrieve the value of a missing key, an error is raised. To prevent the error, use dict exists: if {[dict exists $alpha $key]} { set result [d...

The DatePicker class has a property, SelectedDate, which enable you to get or set the selected date. If there is none selected, it means its value will be null. if (datePicker.SelectedDate == null) { // Do what you have to do }

You call use Thread.kill or Thread.terminate: thr = Thread.new { ... } Thread.kill(thr)

Android developers(mainly beginners) have been confused regarding Internal & External storage terminology. There are lot of questions on Stackoverflow regarding the same. This is mainly because of the fact that terminology according to Google/official Android documentation is quite different to...

var client = new MongoClient("mongodb://localhost:27017"); var database = client.GetDatabase("test"); var collection = database.GetCollection < Interactions > ("Interactions"); var newItem = new Interactions{ SiteName = "Example", Pages = ...

var client = new MongoClient("mongodb://localhost:27017"); var database = client.GetDatabase("test"); var collection = database.GetCollection < Interactions > ("Interactions"); var result = IMongoCollectionExtensions .AsQueryable(collection) ...

var client = new MongoClient("mongodb://localhost:27017"); var database = client.GetDatabase("test"); var collection = database.GetCollection < Interactions > ("Interactions"); var update = MongoDB.Driver .Builders .Update.Set(s => s.SiteName, "New Ex...

var client = new MongoClient("mongodb://localhost:27017"); var database = client.GetDatabase("test"); var collection = database.GetCollection < Interactions > ("Interactions"); collection.DeleteOne(s => s.SiteName == "New Example");

To add a child view controller: - (void)displayContentController:(UIViewController *)vc { [self addChildViewController:vc]; vc.view.frame = self.view.frame; [self.view addSubview:vc.view]; [vc didMoveToParentViewController:self]; } To remove a child view controller: - (void)hid...

Introduction Maps stores key/value pairs, where each key has an associated value. Given a particular key, the map can look up the associated value very quickly. Maps, also known as associate array, is an object that stores the data in form of keys and values. In Java, maps are represented using Ma...

DELETE FROM Helloworlds This will delete all the data from the table. The table will contain no rows after you run this code. Unlike DROP TABLE, this preserves the table itself and its structure and you can continue to insert new rows into that table. Another way to delete all rows in table is ...

TRUNCATE TABLE Helloworlds This code will delete all the data from the table Helloworlds. Truncate table is almost similar to Delete from Table code. The difference is that you can not use where clauses with Truncate. Truncate table is considered better than delete because it uses less transacti...

Static .Net library methods can be called from PowerShell by encapsulating the full class name in third bracket and then calling the method using :: #calling Path.GetFileName() C:\> [System.IO.Path]::GetFileName('C:\Windows\explorer.exe') explorer.exe Static methods can be called from the c...