Java vs JavaScript: Most Important Differences You Must Know

Details

What is Java?

Java is a multi-platform, object-oriented, and network-centric, programming language. It is among the most used programming language. It also used as a computing platform, and it was first released by Sun Microsystem in 1995. It was later acquired by Oracle Corporation.

In this JavaScript vs Java tutorial, you will learn:

What is JavaScript?

JavaScript is a scripting language that helps you create interactive web pages. It follows the rules of client-side programming, so it runs in the user's web browser without the need for any resources form the web server. You can also use JavaScript with other technologies like REST APIs, XML, and more. Nowadays JavaScript also using technologies like Node js.

KEY DIFFERENCES:

  • Java is a multi-platform, object-oriented, and network-centric, programming language whereas JavaScript is a scripting language that helps you create interactive web pages.
  • Java is a strongly typed language while JavaScript is a weakly typed language.
  • Java has a file extension ".Java," whereas Javascript has the file extension ".js"
  • With Java, you write code once and run it on almost any computing platform, on the other hand, Java script is a cross-platform language.
  • Java is compiled on the server before execution on the client while JavaScript is interpreted by the client.
  • Java is static language while JavaScript is a dynamic language.

Features of Java

Here are the important features of Java.

Features of JavaScript

Google trends Java vs. Java script

Here are important features of Java-script:

Application of Java

Stack Overflow Questions JAVA vs Java Script

Here, are important applications of Java language:

To develop:

Application of JavaScript

Here, are some important applications of JavaScript:

JavaScript vs Java

A major difference Java and JavaScript is that Java is compiled and interpreted language while JavaScript code is directly executed by the browser

Parameters Java Java script
Variable Definition Java is a strongly typed language, so the variable should be declared first before using in the program. JavaScript is a weakly typed language, so its variable can be declared where they are used.
Type of language It is an object-oriented programming language. It is an object-based scripting language
Type of object Objects of Java are class-based, so you can't create any program in java without developing a class. Objects are prototype-based.
Extension It has a file extension ".Java". It has file extension ".js"
Compilation process It is interpreted as well as complied. Java translates source code into bytecodes. It is executed by JVM(Java Virtual Machine). All browser has the JavaScript interpreter, which allows you to execute JavaScript code.
Process Compiled on the server before execution on the client. Interpreted (not compiled) by the client.
Code type Object-oriented. Applets consist of object classes with inheritance. It is object-based. Code uses built-in, extensible objects but not uses any classes or inheritance.
Syntax Data types must be declared. Data types not declared.
Type of language Static Dynamic
Key Features
  • Great libraries
  • Widely used
  • Excellent tooling
  • Can be used on frontend/backend
  • It's everywhere
  • Lots of great frameworks
Famous Company using the Technology Airbnb, Uber Technologies, Netflix, Instagram. Reddit, eBay, Coursera.
Code 
class A {
 public static void main(String args[]){
     System.out.println("Hello World");
 }
}
<html>
<head>
    <title>My First JavaScript code!!!</title>
    <script>
        alert("Hello World!");
    </script>
</head>
<body>
</body>
</html>
Salary The average salary for a Java Developer is $103,464 per year in the US. The average salary for a JavaScript Developer is $113,615 per year in the US.
TOBIE Rating 1 6

Advantage of Java

Here, are benefits/ pros of using Java

Advantages of JavaScript

Here, are pros/benefits of using JavaScript

Disadvantages of Java

Here, are cons/drawback of using Java language

Disadvantages of JavaScript

Here, are drawbacks/cons of using JavaScript

 

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