JavaScript and Java are both programming languages, but they have significant differences in terms of function and application.
1. Purpose: Java is a general-purpose programming language that can be used to develop a wide range of applications, from backend services to Android applications. JavaScript, on the other hand, is primarily used for enhancing user-interactivity on websites.
1. Execution Environment: Java code typically runs on the Java Virtual Machine (JVM) and needs to be compiled before it can be run. JavaScript code is run on a web browser and doesn’t need to be compiled.
1. Syntax: While both languages share some syntax from their common ancestry in C, they have many differences. Java’s syntax is more complex and stringent, while JavaScript’s is more loose and flexible.
1. OOP: Java is an Object Oriented Programming language that uses classes as the blueprint for objects. JavaScript also supports objects, but it is based on prototypal inheritance concept, which differs from the class-based object-oriented programming model.
1. Concurrency: Java uses thread-based concurrency while JavaScript uses event-based concurrency.
1. Use on the Web: JavaScript is a key pillar of the web and is natively supported by all browsers. Java can be run on the web using a Java Applet, but this is not widely supported or recommended.
In essence, despite their names, Java and JavaScript are vastly different languages aimed at different tasks. Java is typically used for larger scale applications while JavaScript is used to make web pages dynamic and interactive.
