Java vs Javascript

In this tutorial, we are going to understand the difference between the two most amazing languages Java and JavaScript so let’s start with Java vs JavaScript.

What is Java?

Java is an object-oriented programming language it is used in a distributed environment on the internet. It is a computer-based programming language that was invented by James Gosling and Sun Microsystems in 1991. It is popularly used in web and mobile applications, game development, and desktop applications.

What is JavaScript?

JavaScript is the event-based programming language it is used to make the web page dynamic. it is an interpreted programming language with object-oriented capabilities. It was invented by Brendan Eich in 1995 and it is popularly used in building web pages and in-game development.

Difference Between Java and JavaScript

Java is the programming language. Java programming is used independently while javaScript is a scripting language. JavaScript is used with other programs, javaScript codes are embedded with HTML and CSS like PHP.

Java is completely object-oriented programming, it supports all features of object-oriented programming whereas javascript is an object-based language meant to say we can make objects in javascript but it does not support all features of object-oriented programming. The concepts of inheritance and polymorphism are not available in javascript.

In java code is compiled whereas in javascript there is no compilation step, code does not require compilation because it is an interpreted language so the code of javascript is interpreted by the interpreter.

Compilation Process – Java vs JavaScript

The compilation process occurs in Java While executing the code but in javascript, there is no compilation process.

Java code runs on browser and JVM (Java Virtual Machine), we can run Java code on any browser by using JVM, we make applets by using java which runs on the browser whereas the code of Javascript is understandable by browser only.

Language Type – Java vs JavaScript

Java is the strongly-typed or static typed language it means in java whenever you declare a variable you have to mention its data type as well, for example, int x=10, but if we talk about javascript so, it is a loosely typed or dynamically typed language, there is no need to mention the data type of variable in javascript it is interpreted at run time, for example, x=0.

Syntax – Java vs JavaScript

Java is a complex programming language, its syntax is quite complicated whereas the syntax of javascript is easier than java. JavaScript is so simple and easy-to-understand language. 

Execution – Java vs JavaScript

Java is mainly a server-side language while javascript can be used as client-side and server-side as well. Mean to say the codes of javascript are run on the client-side we can say on the client browser and when you write the logic in javascript so it runs on the server-side.

Generally, the code of Java is compiled by a compiler and the compiler converts the code into bytecode then the bytecode is sent to JVM (java virtual machine) and JVM converts the bytecode into machine language and runs it.

Extension – Java vs JavaScript

The extension of the Java file is a .java extension whereas javascript files have a .js extension.

Usage Of Java

Java is used for making complete applications, it is used for making client and server-side applications. it is also used for building applets that run on browsers.

Usage Of JavaScript

JavaScript is used for making the web page more dynamic. we can’t make an application by using only javascript. the work of javascript is just adding dynamic content to our website which makes our website more dynamic and interactive.


In this tutorial, we talk about the difference between Java and JavaScript. We see their introduction then we discuss their main differences after that we talk about the main key features of Java vs JavaScript.

I hope your concept will be clear now about Java vs JavaScript that both of these languages are completely different from each other.

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