Differences between Java and JavaScript

Java and JavaScript are computer programming languages. Often times, these two are being mistaken by some computer literates to be same. However, this notion is false. Although Java and JavaScript share striking similarities, they are not same.


JavaScript is programming language that is object-oriented, mainly used in creating interactive effects within web browsers. It is a high level, dynamic, weakly typed, object-based, multi-paradigm and interpreted client-side programming language. It is used to enhance and design the outlook of web pages.

Most websites use JavaScript to enhance the makeup of their web pages. JavaScript programming language is written in a text. Scripts are embedded in or included from HTML pages and interact with the document object model of the pages. JavaScript resides inside HTML documents.


Java, unlike JavaScript, is a general-purpose computer programming language designed to run on any computer system. It is used by software/application developers to run programs on different platforms that support Java. They accomplish this by compiling a java code. It is a reliable, versatile language used in apps for android devices, organization system.

Java can run on many different operating systems. Java programs are compiled before its execution occurs in a web-based environment. Java language is largely influenced by the C language. It runs on the syntax of C and C++.

Other Differences

However, there are other key differences between Java and JavaScript. Some of them are:

  • The two programming language have different programming plug-ins.
  • Java requires all non-block statements to end with a semicolon; JavaScript inserts semicolons at the end of certain lines.
  • Java creates applications which can be run on a browser or virtual machine, while JavaScript code is run on a browser only.
  • Java code needs to be compiled while JavaScript code is all in a text.
  • Java runs with Ada 82, C++, C#, Eiffel, Generic Java, Mesa, Modula-3, Oberon, Objective C, UCSD Pascal, and Smalltalk. JavaScript is run by Lua, Scheme, Self, and Python.

There you have it! All the above are some of the glaring differences between Java and JavaScript. I hope you have learned something new today.

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