Tutorial by Examples: u

There are different approaches to the installation of SFML on Linux: Install it directly from your distribution's package repository Get the source code, build it and install it Download the precompiled SDK and manually copy the files Option 1 is the preferred one; if the version of SFML tha...

Simple Codec Here to illustrate the working principle we can use simple encryption and decryption as follows. public static String encrypt(String input) { // Simple encryption, not very strong! return Base64.encodeToString(input.getBytes(), Base64.DEFAULT); } public static String dec...

Simple Codec Here to illustrate the working principle we can use simple encryption and decryption as follows. public static String encrypt(String input) { // Simple encryption, not very strong! return Base64.encodeToString(input.getBytes(), Base64.DEFAULT); } public static String dec...

This is project directory. A service endpoint interface First we will create a service endpoint interface. The javax.jws.WebService @WebService annotation defines the class as a web service endpoint. import javax.jws.WebMethod; import javax.jws.WebService; import javax.jws.soap.SOAPBi...

The example below uses the input statement to read a value from a source (in this case the string 123) into a both a character destination and a numeric destination. data test; source = '123'; numeric_destination = input(source, best.); character_destination = input(source, $3.); run; ...

Magics whose name begins with just one % take as argument the rest of the line and are called line magics. Magics that begin with a double percent sign %% take a multi-line argument and are called cell magics. A commonly used magic is %timeit, a wrapper around the Python's timeit.timeit function, f...

We have a Student table with SubjectId. Here the requirement is to concatenate based on subjectId. All SQL Server versions create table #yourstudent (subjectid int, studentname varchar(10)) insert into #yourstudent (subjectid, studentname) values ( 1 ,'Mary' ) ,( 1 ,'John' ...

import scalaz._ import Scalaz._ scala> Apply[Option].apply2(some(1), some(2))((a, b) => a + b) res0: Option[Int] = Some(3) scala> val intToString: Int => String = _.toString scala> Apply[Option].ap(1.some)(some(intToString)) res1: Option[String] = Some(1) scala> Appl...

import scalaz._ import Scalaz._ scala> val len: String => Int = _.length len: String => Int = $$Lambda$1164/969820333@7e758f40 scala> Functor[Option].map(Some("foo"))(len) res0: Option[Int] = Some(3) scala> Functor[Option].map(None)(len) res1: Option[Int] = None ...

import scalaz._ import Scalaz._ scala> val plus1 = (_: Int) + 1 plus1: Int => Int = $$Lambda$1167/1113119649@6a6bfd97 scala> val plus2 = (_: Int) + 2 plus2: Int => Int = $$Lambda$1168/924329548@6bbe050f scala> val rev = (_: String).reverse rev: String => String = $$Lambd...

Having different pipes is a very common case, where each pipe does a different thing. Adding each pipe to each component may become a repetitive code. It is possible to bundle all frequently used pipes in one Module and import that new module in any component needs the pipes. breaklines.ts import...

Unary operators act on the object upon which they are called and have high precedence. (See Remarks) When used postfix, the action occurs only after the entire operation is evaluated, leading to some interesting arithmetics: int a = 1; ++a; // result: 2 a--; // result: 1 i...

A common need for random numbers it to generate a number that is X% of some max value. this can be done by treating the result of NextDouble() as a percentage: var rnd = new Random(); var maxValue = 5000; var percentage = rnd.NextDouble(); var result = maxValue * percentage; //suppose NextDoub...

/** * Set a custom add to cart URL to redirect to * @return string */ function custom_add_to_cart_redirect() { return 'http://www.yourdomain.com/your-page/'; } add_filter( 'woocommerce_add_to_cart_redirect', 'custom_add_to_cart_redirect' );

std::mutex is a simple, non-recursive synchronization structure that is used to protect data which is accessed by multiple threads. std::atomic_int temp{0}; std::mutex _mutex; std::thread t( [&](){ while( temp!= -1){ ...

Recursive mutex allows the same thread to recursively lock a resource - up to an unspecified limit. There are very few real-word justifications for this. Certain complex implementations might need to call an overloaded copy of a function without releasing the lock. std::atomic_int temp{0}; ...

Compress-Archive -Path C:\Documents\* -Update -DestinationPath C:\Archives\Documents.zip this will add or replace all files Documents.zip with the new ones from C:\Documents

index.js var http = require("http"); http.createServer(function(request, response) { response.writeHead(200, {"Content-Type": "text/plain"}); response.write("Heroku world!"); response.end(); }).listen(process.env.PORT); package.json { &quo...

if (Patterns.EMAIL_ADDRESS.matcher(email).matches()){ Log.i("EmailCheck","It is valid"); }

Install msys2 (http://www.msys2.org/) Install the required prerequisites for Vala pacman -S mingw64/mingw-w64-x86_64-gcc pacman -S mingw64/mingw-w64-x86_64-pkg-config pacman -S mingw64/mingw-w64-x86_64-vala and all the additional packages your code requires, i.e. pacman -S mingw64/mi...