Difference between Java And JavaScript

Difference between Java And JavaScript

Difference between Java and JavaScript : Undoubtedly seem to be similar kinds of things when you hear these words for the first time but actually, there are very few points where these two go parallel. So, before going into depth, let’s give you a brief intro about these two words.

The mobile applications, websites, computer systems don’t have their intelligence, so they work on some algorithms and codes designed by software engineers. One needs to have the knowledge of some programming languages for writing these codes. Java and JavaScript are two of these programming languages which are widely used nowadays.

How Do Java And JavaScript Differ With Each Other?

Java and JavaScript are much different from each other in many aspects whether it may be their field of use, their syntax, a roadmap of learning, and others too. Let’s discuss some of them one by one.

1.     Their Interaction With A User

When you open a website on your browser and click on either an icon or a button, you see some motion or activity in those. It may be either a sliding effect or transition to a new page or any other activity which are collectively termed as dynamic content. The main hero behind this dynamic content and whatever you are watching on your web browser is JavaScript.

On the other hand, when someone sends you a follow request on Instagram, what you see is a notification of this. But, you couldn’t even think of processing this follow request and then sending it to your phone. Servers perform these tasks and Java is used there as a back-end language.

Thus, Java is used to write the logic of a server whereas JavaScript works on the front-end side of your browser to enable you to directly interact with the webpage or application.

2.     Their Syntaxes

Syntaxes of Java and JavaScript differ from each other in their complexity. The syntax of Java is very much like that of C++ whereas the syntax of JavaScript is that of C language. Java works on strongly-defined data types while JavaScript has no defined data types. Since C++ and Java both are object-oriented programming languages, so both of these use similar kinds of objects and classes. The thing which makes JavaScript parallel with Java is the naming convention.

In JavaScript, the objects are based on prototypes whereas, in Java, these are class-based. File extensions of their codes are also different. For Java code files, it’s .java while for those of JavaScript, it becomes .js.

3.     Execution Of Their Codes

Java is a programming language, so the Java codes are first compiled in a JVM which you have to install separately, and then these codes are interpreted. Whereas, in the case of JavaScript, what you need is only a web browser.

Yes, JavaScript is a scripting language, so its code is in a plain-text format. You have to paste that code in a browser and then it will be interpreted.

You don’t have to install any tool or setup for running JavaScript code.

4.     Learning Roadmaps

             If you are new to the programming world and you want to select either Java or JavaScript, then going with JavaScript will be very helpful for you. For getting a job in a tech company, you have to be well-versed in at least one object-oriented programming language, for this purpose you can start with Java.

            If you’re planning to choose JavaScript as your first programming language, it may be tricky for you. Somehow, if you could get over the code-complexity of JavaScript, still you will get bored soon. The best roadmap to learn JavaScript is to learn HTML and CSS first and then shift yourself to JavaScript.

●      Conclusion

Because of the increase in the demand for applications and websites, Java and JavaScript will maintain their high demand in the market. Java is used in the development of applications of nearly all operating systems but JavaScript is the language of web development. For Java learners, opportunities are slightly more than JavaScript ones because of the versatility of it. You have to use Java whether you are either an android developer, back-end web developer, or any other one. For iOS applications, you have to use another languages like Swift and C#, but a cross-platform language Kotlin has reduced this tension as it’s very similar to Java. JavaScript learners will also be in high demand since JavaScript websites can offer more customizations and dynamic effects than those built using WordPress