Tutorial by Examples: in

We can use Channel to copy file content faster. To do so, we can use transferTo() method of FileChannel . import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.nio.channels.FileChannel; public class FileCopier { ...
Reading file using a BufferedInputStream generally faster than FileInputStream because it maintains an internal buffer to store bytes read from the underlying input stream. import java.io.BufferedInputStream; import java.io.FileInputStream; import java.io.IOException; public class FileReadin...
Plain lists are the simplest type of list in Common Lisp. They are an ordered sequence of elements. They support basic operations like getting the first element of a list and the rest of a list in constant time, support random access in linear time. (list 1 2 3) ;=> (1 2 3) (first (list 1 ...
Each Java Thread has an interrupt flag, which is initially false. Interrupting a thread, is essentially nothing more than setting that flag to true. The code running on that thread can check the flag on occasion and act upon it. The code can also ignore it completely. But why would each Thread have...
Pinches are a two fingered gesture where the fingers move closer or farther from each other. This gesture is generally used for resizing a view. Swift override func viewDidLoad() { super.viewDidLoad() // Pinch let pinchGesture = UIPinchGestureRecognizer(target: self, action: #sele...
Drag a gesture recognizer from the object library onto your view. Control drag from the gesture in the Document Outline to your View Controller code in order to make an Outlet and an Action. Notes This example comes from this fuller sample project demonstrating gesture recognizers.
//Creates a Random instance with a seed of 12345. Random random = new Random(12345L); //Gets a ThreadLocalRandom instance ThreadLocalRandom tlr = ThreadLocalRandom.current(); //Set the instance's seed. tlr.setSeed(12345L); Using the same seed to generate random numbers will return the sa...
Time series data can be stored as a ts object. ts objects contain information about seasonal frequency that is used by ARIMA functions. It also allows for calling of elements in the series by date using the window command. #Create a dummy dataset of 100 observations x <- rnorm(100) #Convert ...
Add below entries in pom.xml. <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-web</artifactId> <version>3.1.0.RELEASE</version> </dependency> <dependency> <groupId>org.springfr...
public static void main(String[] args) throws Exception { File jarFile = new File("Input.jar"); Map<String, ClassNode> nodes = JarUtils.loadClasses(jarFile); Map<String, byte[]> out = JarUtils.loadNonClassEntries(jarFile); Map<String, String> map...
Preconnect The preconnect relationship is similar to dns-prefetch in that it will resolve the DNS. However, it will also make the TCP handshake, and optional TLS negotiation. This is an experimental feature. <link rel="preconnect" href="URL"> DNS-Prefetch Informs bro...
Suppose you have a hot observable for which you would love to keep the count of. It could be the IObservable<StockTick> and you want to keep count of the average trade volume. You can use Scan for that. var tradeVolume = stockTicks.Select(e => e.Price) .Scan(0.0m, (aggregated, newtick...
Development and Evaluation Installations Alfresco provides a number of different installers for different operating systems and platforms. However, these installers are not recommended for production environments. https://www.alfresco.com/alfresco-community-download https://sourceforge.net/projec...
To write data to a file using Channel we need to have the following steps: First, we need to get an object of FileOutputStream Acquire FileChannel calling the getChannel() method from the FileOutputStream Create a ByteBuffer and then fill it with data Then we have to call the flip() method of ...
We can use PrintStream class to write a file. It has several methods that let you print any data type values. println() method appends a new line. Once we are done printing, we have to flush the PrintStream. import java.io.FileNotFoundException; import java.io.PrintStream; import java.time.Local...
When you run sails lift with blueprints enabled, the framework inspects your controllers, models, and configuration in order to bind certain routes automatically. These implicit blueprint routes allow your app to respond to certain requests without you having to bind those routes manually in your ...
Blueprint actions (not to be confused with blueprint action routes) are generic actions designed to work with any of your controllers that have a model of the same name (e.g. ParrotController would need a Parrot model). Think of them as the default behavior for your application. For instance, if...
Global basis: Blueprint API configuration is defined in /config/blueprint.js file. You can enable or disable all three types of blueprint routes for all controllers from there. As example, if you want to disable blueprint shortcut routes for all of your controllers but want to keep both acti...
set alpha 1 proc myproc {} { puts $alpha } myproc This code doesn't work because the two alphas are in different scopes. The command set alpha 1 creates a variable in the global scope (which makes it a global variable). The command puts $alpha is executed in a scope that is created ...
To print the value of a pointer to an object (as opposed to a function pointer) use the p conversion specifier. It is defined to print void-pointers only, so to print out the value of a non void-pointer it needs to be explicitly converted ("casted*") to void*. #include <stdlib.h> /*...

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