Java vs JavaScript

Posted September 9, 2022 by Rohith and Anusha ‐ 2 min read

Java is an object-oriented programming language and has a virtual machine platform that allows you to create compiled programs that run on nearly every platform. JavaScript is a lightweight programming language(scripting language) and is used to make web pages interactive. It can insert dynamic text into HTML.

The difference between Java and JavaScript is as follows

Java is a strongly typed language and variables must be declared first to use in the program. In Java, the type of a variable is checked at compile-time.JavaScript is a loosely typed language and has a more relaxed syntax and rules.
Java is an object-oriented programming language.JavaScript is an object-based scripting language.
Java applications can run in any virtual machine(JVM) or browser.JavaScript code used to run only in the browser, but now it can run on the server via Node.js.
Java program has the file extension .Java and translates source code into bytecodes which are executed by JVM(Java Virtual Machine).JavaScript file has the file extension .js and it is interpreted but not compiled, every browser has the Javascript interpreter to execute JS code.if compile time
Java is a Standalone language.contained within a web page and integrates with its HTML content.
Java has a thread-based approach to concurrency.Javascript has an event-based approach to concurrency.
Java supports multithreading.Javascript doesn’t support multi-threading.
Java is mainly used for backendJavascript is used for the frontend and backend both.
Java uses more memoryJavascript uses less memory.
Java requires a Java Development Kit(JDK) to run the codeJavascript requires any text editor or browser console to run the code
quick-references blog java javascript differences

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