Difference Between Java and JavaScript

By Aina Parasher|Updated : May 4th, 2022

Difference Between Java and JavaScript: The main difference between Java and JavaScript, is that Java is an OOP programming language, whereas JavaScript is an OOP programming script. JavaScript code is entirely written in text and just needs to be interpreted. Java, on the other hand, has to be built before it can be used.

Both of these may also be utilized for a variety of purposes. Java is used to create apps for mobile devices and browsers, but JavaScript is mostly utilized in HTML texts and browsers. To utilize Java and JavaScript, certain plug-ins are required. Further, let us discuss the difference between Java and JavaScript.

Table of Content

What is Java?

Java is an object-oriented programming language with a virtual machine platform that allows you to compile and run applications on almost any platform. It is a programming language that is multi-platform, object-oriented, and network-centric. The features of Java are mentioned below.

  • It is intended for the development of object-oriented applications.
  • It's a multithreaded language with memory management built.
  • It has a network-centric design as it facilitates distributed computing.

What is JavaScript?

JavaScript is a lightweight programming language (sometimes known as a "scripting language") that is used to create interactive web pages. It has the ability to inject dynamic text into HTML. The browser's language is also known as JavaScript. JavaScript (JS) is not connected to or similar to Java. Although both languages have a C-like syntax and are extensively used in client-side and server-side Web applications, there are just a few commonalities between them. The features of JavaScript are given below.

  • It's a platform-independent language.
  • It is commonly used for client-side and server-side.
  • It's simple to pick up and start coding with.

Difference Between Java and JavaScript 

Many people seem to believe that Java and JavaScript are the same languages or that they are different names for the same language. However, the user must be convinced that JavaScript and the Java programming language are not the same and that JavaScript has nothing to do with the Java programming language. Further, let us check the difference between Java and JavaScript listed in the table below.

Difference Between Java and JavaScript
JavaJavaScript
Java is a computer language that focuses on objects. JavaScript is a scripting language that is built on objects.
Because Java is a tightly typed language, variables must be declared before they may be used. The type of a variable is verified at build time in Java. JavaScript is a scripting language with a more permissive syntax and set of rules.
Before running a Java application, it should be compiled. For execution, JavaScript must be embedded into the HTML program.
Java apps do not require the use of a web browser.To execute JavaScript apps, you'll need a web browser.
It is one of the most difficult languages to master. It is one of the most straightforward languages to learn.
Users can do complex operations in Java by employing Multi-threading.The user cannot execute complex activities in JavaScript.
It needs a significant quantity of memory.It does not demand that much memory.

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FAQs

  • The main difference between Java and JavaScript is that Java is an object-oriented programming language, whereas JavaScript is a scripting language that is built on objects.

  • Java is a class-based and object-oriented general-purpose programming language. Developers can create code everywhere and run it anywhere since the programming language is built in such a manner that they don't have to worry about the underlying computer architecture. It's also known as "write once, run anywhere" (WORA).

  • Javascript is a programming language that is used by programmers all over the world to develop dynamic and interactive online content such as apps and browsers. Whereas HTML and CSS provide structure and aesthetic to web pages, JavaScript adds interactive components that keep users engaged.

  • Based on their file extension, the difference between Java and JavaScript is that Java program files have an extension “.Java”. JavaScript code files has “.js” extension.

  • The compilation difference between Java and JavaScript is that Java is a programming language, so it may be compiled as well as interpreted whereas, JavaScript is an interpreted scripting language that uses plain text code.

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