So it is no surprise that both JavaScript and Java are very popular among developers. In a way both Java and JavaScript promise multi-platform support - Java because its JVM is available for a lot of operating systems, and JavaScript because web browsers are available to users of all operating systems. JavaScript has a number of popular libraries, including jQuery and jQuery UI, Prototype, Mootools, and Node.js. Some of Java's most popular frameworks include Spring MVC, JSF, Struts, GWT, and Play. The difference between a framework and a library is contested, with the terms sometimes used interchangeably, but the easiest way to differentiate the two is to know that a framework provides a "skeleton" system to work from, while a library provides specific tools to build upon a system. In modern design and development, Java and JavaScript are often "filtered" through frameworks and libraries, which are development tools that simplify programming. The following code displays a dialogue box with the words "Hello, World!" inside it. JavaScript's syntax is also influenced by C, and naming conventions are similar to those found in Java. The following code prints-displays-the words "Hello, World!" on a webpage. Code is contained in classes, and values are objects. This video also offers a brief tutorial on Java: You can begin learning Java for free with the website Learn Java. If you want to make websites, you should learn JavaScript. If you want to build applications, you should learn Java. Still, Java has a steep learning curve, while JavaScript will likely seem easier to start with because of how it functions in a web browser. Java is a mature, stable technology platform and can often be found in embedded systems, usually running on an underlying Linux OS.īecause Java and JavaScript have extensive documentation and active online communities, learning either language should be free and relatively straightforward. The potential advantage of using JavaScript for mobile apps is being able to reuse a greater percentage of the code base across mobile platforms. Certain features like checking battery life are only available to native code. Not all functionality offered by a smartphone can be utilized by JavaScript apps.The look and feel of a mobile app written in JavaScript is often dissimilar to what native code may produce.Third party tools like Titanium Appcelerator or Phonegap are required to convert the JavaScript code into the respective native code that the mobile platform can execute.Mobile apps can also be written in JavaScript, but there are usually a few limitations: Native Android apps are written in Java, and older smartphone platforms like Symbian and Bada also support Java. This means application developers could write their programs in Java and they would run on Windows, Mac, and Linux desktops without needing any changes. Java applets may be used for browser-based apps, but they require a Java plugin and cannot run natively in web browsers.īeginning in the late 1990s, Java was the programming language of choice for desktop applications because it offered cross-platform support. With node.js, JavaScript can also be used to build "back-end" or server-side applications.Ĭonversely, Java is more commonly used for back-end, server-side processing. JavaScript is commonly found in "front-end" applications, i.e., the web pages delivered to users' browsers. Recent advances in JavaScript (ECMAScript) have also taken the language toward a more object-oriented paradigm. While JavaScript started as a "front-end" scripting language for web pages, it is becoming increasingly popular for server-side programming via NodeJS. JavaScript is also used to call other scripts from around the web, such as an advertising script from Google or a social media " widget" from Twitter or Facebook. Most often, it is the language behind subtle graphical animations, very simple games, creative transitions, and alert messages on a webpage. JavaScript is best known for its use in web design. NET, Objective-J, QML, TIScript, TypeScriptĪs an advanced programming language, Java powers many applications, both big and small, from apps on an Android or iPhone, to Blu-Ray players, to games like Minecraft. Static, strong, safe, nominative, manifestĬodes are all in text, does not need to be compiledĪda 2005, BeanShell, C#, Clojure, D, ECMAScript, Groovy, J#, Javascript, PHP, Python, Scala, Seed7, ValaĪctionScript, CoffeeScript, Dart, JScript. JavaScript is an interpreted computer programming language.Īda 83, C++, C#, Eiffel, Generic Java, Mesa, Modula-3, Oberon, Objective-C, UCSD Pascal, Smalltalk Java is a computer programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible.
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