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Difference between JavaScript and Java

difference java javascript

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#1 DesGuru

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Posted 30 October 2012 - 07:50 PM

JavaScript programming language, is not component of the Java platform.
JavaScript, doesn’t create stand-alone applications and applets. JavaScript is placed inside HTML documents, to provide interactivity levels to web pages that cant be achieved with the simple HTML.

A number of differences between Java and JavaScript are listed below
•Java is a programming language while Java Script is a scripting language.
•Java creates applications that run in a browser or virtual machine but JavaScript code runs on browsers.
•JavaScript code is all in text and doesn’t need to be compiled while Java code needs to be compiled.
•Java and JavaScript require different plug-ins.
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#2 anirban09p

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Posted 21 January 2015 - 04:24 AM

Java is a programming language designed to run applets in a Java Virtual Machine on any computer/device that supports a Java Virtual Machine.  Java applets generally do not interact with the Web page itself, but usually runs as a "standalone" program embedded in a Web page.  ParaChat software offers a Java applet option so you can embed a Java chat room in your web page.

JavaScript (originally known as "LiveScript") is a scripting language that runs inside of an Internet browser to manipulate and enhance the contents of Web pages. JavaScript is designed to expand the capabilities of a web page so that it behaves more like a program than just a static page of text and images.


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#3 rinomasaya

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Posted 10 April 2017 - 06:56 AM

JavaScript is an object-oriented scripting language that allows you to create dynamic HTML pages, allowing you to process input data and maintain data, usually within the browser.

 

Java is a programming language, core set of libraries, and virtual machine platform that allows you to create compiled programs that run on nearly every platform, without distribution of source code in its raw form or recompilation. More on....Java and Javascript

 

Rino


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#4 Donkey_Dash

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Posted 30 May 2017 - 05:33 AM

Its easy. Javascript does not create applets or stand alone applications.  In the most common form. javascript resides inside HTML documents.


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#5 RajGawdi

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Posted 15 June 2017 - 10:17 AM

Difference: 

 

  1. Java is an OOP programming language while JavaScript is an OOP scripting language.
  2. In Java, there are classes, and instances, as separate concepts. But In Javascript, does not use classes. In JavaScript, you don't define classes and create objects from these classes.
  3. Java and Javascript are similar like Car and Carpet are similar.

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#6 pranitpatil0503

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Posted 15 November 2017 - 05:39 AM

The difference between Java programming and javaScript is not understood very well normally. Many confuse it to be the same. If one wants to start a career as a developer, one needs to understand the proper difference.

1.Environment to execute: 2.OOP:

Java happens to be Object Oriented Programming language, and however JavaScript likewise bolsters class and object, it’s more similar to an OO scripting language.

3.Constructors:

Java has idea of constructors, which has some extraordinary properties e.g. constructor chaining and guaranteeing that super class constructor keeps running before sub class, then again JavaScript constructors are simply one more function.

4.NullPointerException:

JavaScript is considerably more sympathetic than Java, you don’t have NullPointerException in JavaScript, your variable can acknowledge various types of data on account of JavaScript is powerfully written language..more


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#7 Dedicatedit

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Posted 07 March 2018 - 01:28 PM

Java, Core Java and Advanced Java are three levels of Java knowledge.

Java: This is the basic level, in which you can learn how to write a Hello World program in Java and create basic Java programs for Calculator etc.

Core Java: At this level, you have to gain expertise in Java Collections, Java Multi-threading, OOPS concepts, Polymorphism, Java Exception handling etc. This is the level at which you can get a Job in a company.

Advanced Java: As the name suggests, at this level you are expected to know not only core Java but also related packages etc. You have to know XML handling, JSON parsing, REST service creation etc.

JavaScript:

JavaScript is an interpreted programming or script language from Netscape. It is somewhat similar in capability to Microsoft'sVisual Basic, Sun's Tcl, the UNIX-derived Perl, and IBM's REXX. In general, script languages are easier and faster to code in than the more structured and compiled languages such as C and C++. Script languages generally take longer to process than compiled languages but are very useful for shorter programs.

JavaScript is used in Web site development to do such things as:

Automatically change a formatted date on a Web page

Cause a linked-to page to appear in a popup window

Cause text or a graphic image to change during a mouse rollover

JavaScript uses some of the same ideas found in Java, the compiled object-oriented programming derived from C++. JavaScript code can be embedded in HTML pages and interpreted by the Web browser (or client). JavaScript can also be run at the server as in Microsoft's Active Server Pages before the page is sent to the requestor. Both Microsoft and Netscape browsers support JavaScript, but sometimes in slightly different ways. 


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