Tutorial by Examples: l

The java.util.Locale class is used to represent a "geographical, political or cultural" region to localize a given text, number, date or operation to. A Locale object may thus contain a country, region, language, and also a variant of a language, for instance a dialect spoken in a certain ...

Unnamed struct is allowed (type has no name) void foo() { struct /* No name */ { float x; float y; } point; point.x = 42; } or struct Circle { struct /* No name */ { float x; float y; } center; // but a member name float...

Given a list: li = [1,2,3,4,5] we can filter a list with a predicate using filter :: (a -> Bool) -> [a] -> [a]: filter (== 1) li -- [1] filter (even) li -- [2,4] filter (odd) li -- [1,3,5] -- Something slightly more complicated comfy i = notTooLarg...

var bufferBlock = new BufferBlock<int>(new DataflowBlockOptions { BoundedCapacity = 1000 }); var cancellationToken = new CancellationTokenSource(TimeSpan.FromSeconds(10)).Token; var producerTask = Task.Run(async () => { var random = new Random(); while (!cancellati...

From "How to use Truth" http://google.github.io/truth/ String string = "awesome"; assertThat(string).startsWith("awe"); assertWithMessage("Without me, it's just aweso").that(string).contains("me"); Iterable<Color> googleColors = googleLog...

In order to load the XML data with XOM you will need to make a Builder from which you can build it into a Document. Builder builder = new Builder(); Document doc = builder.build(file); To get the root element, the highest parent in the xml file, you need to use the getRootElement() on the Doc...

Writing to a XML File using XOM is very similar to reading it except in this case we are making the instances instead of retrieving them off the root. To make a new Element use the constructor Element(String name). You will want to make a root element so that you can easily add it to a Document. E...

The Reflection API could be used to change values of private and final fields even in the JDK default library. This could be used to manipulate the behaviour of some well known classes as we will see. What is not possible Lets start first with the only limitation means the only field we can't chan...

The @switch annotation tells the compiler that the match statement can be replaced with a single tableswitch instruction at the bytecode level. This is a minor optimization that can remove unnecessary comparisons and variable loads during runtime. The @switch annotation works only for matches again...

Most KVO and KVC functionality is already implemented by default on all NSObject subclasses. To start observing a property named firstName of an object named personObject do this in the observing class: [personObject addObserver:self forKeyPath:@"firstName" ...

Objective-C NSURL *url = [[NSURL alloc] initWithString:@"YOUR URL"]; // url can be remote or local AVPlayer *player = [AVPlayer playerWithURL:url]; // create a player view controller AVPlayerViewController *controller = [[AVPlayerViewController alloc] init]; [self presentViewC...

A function is a block of organised, reusable code that is used to perform a single, related action. Functions usually "take in" data, process it, and "return" a result. User defined function A function defined by user. Example in PHP //Function definition function a...

You can execute a database query from a String rather than a regular SOQL expression: String tableName = 'Account'; String queryString = 'SELECT Id FROM ' + tableName + ' WHERE CreatedDate >= YESTERDAY'; List<SObject> objects = Database.query(queryString); Since dynamic SOQL queries a...

avg_fragmentation_in_percent valueCorrective statement>5% and < = 30%REORGANIZE>30%REBUILD ALTER INDEX IX_NonClustered ON tableName REORGANIZE; ALTER INDEX ALL ON Production.Product REBUILD WITH (FILLFACTOR = 80, SORT_IN_TEMPDB = ON, STATISTICS_NORECOMPUTE = ON);

Rebuilding indexes is done using the following statement ALTER INDEX All ON tableName REBUILD; This drops the index and recreates it, removing fragementation, reclaims disk space and reorders index pages. One can also reorganize an index using ALTER INDEX All ON tableName REORGANIZE; which ...

EXEC sp_MSForEachTable 'ALTER INDEX ALL ON ? REBUILD'

PHP can also be run from command line directly using the CLI (Command Line Interface). CLI is basically the same as PHP from web servers, except some differences in terms of standard input and output. Triggering The PHP CLI allows four ways to run PHP code: Standard input. Run the php command ...

Document level It is on by default, but you can set it by placing Option Infer On|Off at the top of the code file. The option will apply to the whole document. Project level You can switch it on/off via the menu in Visual Studio: Project > [Project] Properties > Compile Tab > Option i...

Sub Main() Dim People = New List(Of String)({"Bob Barker", "Ricky Bobby", "Jeff Bridges"}) Console.WriteLine(People.Contains("Rick James")) Console.WriteLine(People.Contains("Ricky Bobby")) Console.WriteLine(Pe...

OVERVIEW cocos2d-x is an open source, cross-platform game engine. It allows developers to code in C++, Lua and Javascript deployment into iOS, Android, Windows Phone, Mac OS X, Windows Desktop and Linux. PREREQUISITES Build Requirements Mac OS X 10.7+, Xcode 4.6+ Windows 7+, VS 2012+ Ubunt...