What is JavaScript?
JavaScript is an object-based scripting language created at Netscape Communications Corporation by Brendan Eich in 1995. It is used to add interactive and dynamic designs to static HTML-based web applications. It was originally designed to only work in browsers, but with node.js, it can even be used for server-side development.
What is Java?
Java is a class-based, object-oriented programming language. James Gosling created it at Sun Microsystems. It was created with the motto write once, run anywhere. It can run on almost all platforms as it uses a virtual machine platform to run its compiled code.
Similarities between JavaScript and Java:
Both Java and JavaScript inherit their syntax from C and are used in web development. These are only a few similarities these languages have.
Differences between JavaScript and Java:
| JavaScript | Java |
| It is an object-based scripting/programming language that can run in any browser. | It is an object-oriented programming language. |
| It needs environments like node.js to run outside of a browser. | It uses its own virtual machine to run its code. |
| It is a dynamically typed language. | It is a statically typed language. |
| It is more relaxed towards the syntax. | Variables in Java must be declared and |
| Variables can be used without defining their types. | The data types of variables must be defined before using them. |
| It checks data types at run time. | It performs data type checks at compilation time. |
| It is an object-based scripting language where. | It is a class-based programming language. |
| In Javascript, objects are based on prototypes. | In Java, no program can be created without classes. |
| JavaScript is mostly combined with HTML and CSS to make a complete web application. | Java can work as a stand-alone language. It doesn’t need to be integrated with other languages. |
| JavaScript files have .js extensions. | Java files have .java extensions. |
| JavaScript is ideal for beginners and is very easy to learn. | Java is complex and hard to learn. |
| JavaScript source code can run directly on a browser and does not need compiling as it is a scripting language. | Java code needs to be compiled before it can run on a JVM (Java Virtual Machine). |
| It consumes less memory than Java. | Java source code needs a lot more memory than JavaScript source code. |
Conclusion
As you can see from the article, you can’t find many similarities between Java and JavaScript apart from their names. JavaScript is a scripting language for adding interactive elements to a web page, whereas Java is a high-level object-oriented programming language used for computer software development.
