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Dynamic Frequency Selection (DFS) is a technique used in IEEE 802.11 wireless networks or WiFi that permits devices to dynamically switch the operating frequency of transmission in order to avoid interference with other devices.FeaturesDFS is a legal mandate for all IEEE 802.11 devices which share 5 GHz radio spectrum with radar.DFS was adopted in IEEE 802.11h standard for wireless transmissions. It came up in 2003, when the wireless network started using 5 GHz band that is primarily used by radar systems.The objective of DFS is to prevent co-channel interference of signals between the primary user, i.e. radar systems, and the ... Read More
This class matches all visible characters i.e. alphabets, digits, punctuation marks.Example 1 Live Demoimport java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class VisiblieCharacters { public static void main(String args[]) { //Reading String from user System.out.println("Enter a string"); Scanner sc = new Scanner(System.in); String input = sc.nextLine(); //Regular expression String regex = "[\p{Graph}]"; //Compiling the regular expression Pattern pattern = Pattern.compile(regex); //Retrieving the matcher object Matcher matcher = pattern.matcher(input); ... Read More
Wireless broadband (WiBB) a networking technology designed to impart highspeed Internet and data service through wireless networks. Wireless broadband may be delivered through wireless local area networks (WLANs) or wide area networks (WWANs).Similar to other wireless services, wireless broadband can be either fixed or mobile.Features of WiBBWiBB is similar to wired broadband service since they connect to an internet backbone, with the difference that they use radio waves instead of cables to connect to the last mile of the network.The range of most broadband wireless access (BWA) services varies around 50 km from the transmitting tower.Download speeds provided by some ... Read More
The CSS text-transform property allows us to set text capitalization for an element. It can accept the following values: capitalize, lowercase, uppercase, full-width, full-size-kana and none.SyntaxThe syntax of CSS text-transform property is as follows −Selector { text-transform: /*value*/ }ExampleThe following examples illustrate CSS text-transform property − Live Demo h2 { text-transform: uppercase; } .demo { text-transform: lowercase; } q { text-transform: capitalize; font-style: italic; } WordPress WordPress is open source software you can use to create a beautiful website, blog, or app. 34% of the web uses WordPress, from hobby ... Read More
This class matches punctuation marks. i.e.!"#$%&'()*+, -./:;?@[\]^_`{|}~Example 1 Live Demoimport java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class AlphanumericExample { public static void main(String args[]) { //Reading String from user System.out.println("Enter a string"); Scanner sc = new Scanner(System.in); String input = sc.nextLine(); //Regular expression String regex = "[\p{Punct}]"; //Compiling the regular expression Pattern pattern = Pattern.compile(regex); //Retrieving the matcher object Matcher matcher = pattern.matcher(input); int count = 0; ... Read More
This class matches alphabetic characters both upper case and smaller case.Example 1 Live Demoimport java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main( String args[] ) { //Regular expression to match lower case letters String regex = "^\p{Alpha}+$"; //Getting the input data Scanner sc = new Scanner(System.in); System.out.println("Enter 5 input strings: "); String input[] = new String[5]; for (int i=0; i
To use an image on a webpage, use the tag. The tag allows you to add image source, alt, width, height, etc. The src is to add the image URL. The alt is the alternate text attribute, which is text that is visible when the image fails to load. With HTML, add the image source as another domain URL. For that, add the src attribute as a link to another domain.The following are the attributes:Sr.No.Attribute & Description1altThe alternate text for the image2heightThe height of the image3ismapThe image as a server-side image-map4longdescThe URL to a detailed description of an image5srcThe ... Read More
To use an image on a webpage, use the tag. The tag allows you to add image source, alt, width, height, etc. The src is to add the image URL. The alt is the alternate text attribute, which is text that is visible when the image fails to load.With HTML, add the image source as the path of your system drive. For that, add the src attribute as a link to the path of system drive where the image is stored. For example, file:/D:/images/logo.pngThe following are the attributes:Sr.No.Attribute & Description1AltThe alternate text for the image2HeightThe height of the image3IsmapThe ... Read More
Using cookies is the most efficient method of remembering and tracking preferences, purchases, commissions, and other information required for better visitor experience or site statistics.Your server sends some data to the visitor's browser in the form of a cookie. The browser may accept the cookie. If it does, it is stored as a plain text record on the visitor's hard drive. Now, when the visitor arrives at another page on your site, the browser sends the same cookie to the server for retrieval. Once retrieved, your server knows/remembers what was stored earlier.Cookies are a plain text data record of 5 ... Read More
To make text italic in HTML, use the … tag or … tag. Both the tags have the same functioning, but tag is a phrase tag, which renders as emphasized text.Just keep in mind that you can get the same result in HTML with CSS font-style property.ExampleYou can try to run the following code to make text italic in HTML using … tagLive Demo HTML italic text Products Our products: Online HTML Editor and Online Image Editor. ... Read More