Explore Courses
Liverpool Business SchoolLiverpool Business SchoolMBA by Liverpool Business School
  • 18 Months
Bestseller
Golden Gate UniversityGolden Gate UniversityMBA (Master of Business Administration)
  • 15 Months
Popular
O.P.Jindal Global UniversityO.P.Jindal Global UniversityMaster of Business Administration (MBA)
  • 12 Months
New
Birla Institute of Management Technology Birla Institute of Management Technology Post Graduate Diploma in Management (BIMTECH)
  • 24 Months
Liverpool John Moores UniversityLiverpool John Moores UniversityMS in Data Science
  • 18 Months
Popular
IIIT BangaloreIIIT BangalorePost Graduate Programme in Data Science & AI (Executive)
  • 12 Months
Bestseller
Golden Gate UniversityGolden Gate UniversityDBA in Emerging Technologies with concentration in Generative AI
  • 3 Years
upGradupGradData Science Bootcamp with AI
  • 6 Months
New
University of MarylandIIIT BangalorePost Graduate Certificate in Data Science & AI (Executive)
  • 8-8.5 Months
upGradupGradData Science Bootcamp with AI
  • 6 months
Popular
upGrad KnowledgeHutupGrad KnowledgeHutData Engineer Bootcamp
  • Self-Paced
upGradupGradCertificate Course in Business Analytics & Consulting in association with PwC India
  • 06 Months
OP Jindal Global UniversityOP Jindal Global UniversityMaster of Design in User Experience Design
  • 12 Months
Popular
WoolfWoolfMaster of Science in Computer Science
  • 18 Months
New
Jindal Global UniversityJindal Global UniversityMaster of Design in User Experience
  • 12 Months
New
Rushford, GenevaRushford Business SchoolDBA Doctorate in Technology (Computer Science)
  • 36 Months
IIIT BangaloreIIIT BangaloreCloud Computing and DevOps Program (Executive)
  • 8 Months
New
upGrad KnowledgeHutupGrad KnowledgeHutAWS Solutions Architect Certification
  • 32 Hours
upGradupGradFull Stack Software Development Bootcamp
  • 6 Months
Popular
upGradupGradUI/UX Bootcamp
  • 3 Months
upGradupGradCloud Computing Bootcamp
  • 7.5 Months
Golden Gate University Golden Gate University Doctor of Business Administration in Digital Leadership
  • 36 Months
New
Jindal Global UniversityJindal Global UniversityMaster of Design in User Experience
  • 12 Months
New
Golden Gate University Golden Gate University Doctor of Business Administration (DBA)
  • 36 Months
Bestseller
Ecole Supérieure de Gestion et Commerce International ParisEcole Supérieure de Gestion et Commerce International ParisDoctorate of Business Administration (DBA)
  • 36 Months
Rushford, GenevaRushford Business SchoolDoctorate of Business Administration (DBA)
  • 36 Months
KnowledgeHut upGradKnowledgeHut upGradSAFe® 6.0 Certified ScrumMaster (SSM) Training
  • Self-Paced
KnowledgeHut upGradKnowledgeHut upGradPMP® certification
  • Self-Paced
IIM KozhikodeIIM KozhikodeProfessional Certification in HR Management and Analytics
  • 6 Months
Bestseller
Duke CEDuke CEPost Graduate Certificate in Product Management
  • 4-8 Months
Bestseller
upGrad KnowledgeHutupGrad KnowledgeHutLeading SAFe® 6.0 Certification
  • 16 Hours
Popular
upGrad KnowledgeHutupGrad KnowledgeHutCertified ScrumMaster®(CSM) Training
  • 16 Hours
Bestseller
PwCupGrad CampusCertification Program in Financial Modelling & Analysis in association with PwC India
  • 4 Months
upGrad KnowledgeHutupGrad KnowledgeHutSAFe® 6.0 POPM Certification
  • 16 Hours
O.P.Jindal Global UniversityO.P.Jindal Global UniversityMaster of Science in Artificial Intelligence and Data Science
  • 12 Months
Bestseller
Liverpool John Moores University Liverpool John Moores University MS in Machine Learning & AI
  • 18 Months
Popular
Golden Gate UniversityGolden Gate UniversityDBA in Emerging Technologies with concentration in Generative AI
  • 3 Years
IIIT BangaloreIIIT BangaloreExecutive Post Graduate Programme in Machine Learning & AI
  • 13 Months
Bestseller
IIITBIIITBExecutive Program in Generative AI for Leaders
  • 4 Months
upGradupGradAdvanced Certificate Program in GenerativeAI
  • 4 Months
New
IIIT BangaloreIIIT BangalorePost Graduate Certificate in Machine Learning & Deep Learning (Executive)
  • 8 Months
Bestseller
Jindal Global UniversityJindal Global UniversityMaster of Design in User Experience
  • 12 Months
New
Liverpool Business SchoolLiverpool Business SchoolMBA with Marketing Concentration
  • 18 Months
Bestseller
Golden Gate UniversityGolden Gate UniversityMBA with Marketing Concentration
  • 15 Months
Popular
MICAMICAAdvanced Certificate in Digital Marketing and Communication
  • 6 Months
Bestseller
MICAMICAAdvanced Certificate in Brand Communication Management
  • 5 Months
Popular
upGradupGradDigital Marketing Accelerator Program
  • 05 Months
Jindal Global Law SchoolJindal Global Law SchoolLL.M. in Corporate & Financial Law
  • 12 Months
Bestseller
Jindal Global Law SchoolJindal Global Law SchoolLL.M. in AI and Emerging Technologies (Blended Learning Program)
  • 12 Months
Jindal Global Law SchoolJindal Global Law SchoolLL.M. in Intellectual Property & Technology Law
  • 12 Months
Jindal Global Law SchoolJindal Global Law SchoolLL.M. in Dispute Resolution
  • 12 Months
upGradupGradContract Law Certificate Program
  • Self paced
New
ESGCI, ParisESGCI, ParisDoctorate of Business Administration (DBA) from ESGCI, Paris
  • 36 Months
Golden Gate University Golden Gate University Doctor of Business Administration From Golden Gate University, San Francisco
  • 36 Months
Rushford Business SchoolRushford Business SchoolDoctor of Business Administration from Rushford Business School, Switzerland)
  • 36 Months
Edgewood CollegeEdgewood CollegeDoctorate of Business Administration from Edgewood College
  • 24 Months
Golden Gate UniversityGolden Gate UniversityDBA in Emerging Technologies with Concentration in Generative AI
  • 36 Months
Golden Gate University Golden Gate University DBA in Digital Leadership from Golden Gate University, San Francisco
  • 36 Months
Liverpool Business SchoolLiverpool Business SchoolMBA by Liverpool Business School
  • 18 Months
Bestseller
Golden Gate UniversityGolden Gate UniversityMBA (Master of Business Administration)
  • 15 Months
Popular
O.P.Jindal Global UniversityO.P.Jindal Global UniversityMaster of Business Administration (MBA)
  • 12 Months
New
Deakin Business School and Institute of Management Technology, GhaziabadDeakin Business School and IMT, GhaziabadMBA (Master of Business Administration)
  • 12 Months
Liverpool John Moores UniversityLiverpool John Moores UniversityMS in Data Science
  • 18 Months
Bestseller
O.P.Jindal Global UniversityO.P.Jindal Global UniversityMaster of Science in Artificial Intelligence and Data Science
  • 12 Months
Bestseller
IIIT BangaloreIIIT BangalorePost Graduate Programme in Data Science (Executive)
  • 12 Months
Bestseller
O.P.Jindal Global UniversityO.P.Jindal Global UniversityO.P.Jindal Global University
  • 12 Months
WoolfWoolfMaster of Science in Computer Science
  • 18 Months
New
Liverpool John Moores University Liverpool John Moores University MS in Machine Learning & AI
  • 18 Months
Popular
Golden Gate UniversityGolden Gate UniversityDBA in Emerging Technologies with concentration in Generative AI
  • 3 Years
Rushford, GenevaRushford Business SchoolDoctorate of Business Administration (AI/ML)
  • 36 Months
Ecole Supérieure de Gestion et Commerce International ParisEcole Supérieure de Gestion et Commerce International ParisDBA Specialisation in AI & ML
  • 36 Months
Golden Gate University Golden Gate University Doctor of Business Administration (DBA)
  • 36 Months
Bestseller
Ecole Supérieure de Gestion et Commerce International ParisEcole Supérieure de Gestion et Commerce International ParisDoctorate of Business Administration (DBA)
  • 36 Months
Rushford, GenevaRushford Business SchoolDoctorate of Business Administration (DBA)
  • 36 Months
Liverpool Business SchoolLiverpool Business SchoolMBA with Marketing Concentration
  • 18 Months
Bestseller
Golden Gate UniversityGolden Gate UniversityMBA with Marketing Concentration
  • 15 Months
Popular
Jindal Global Law SchoolJindal Global Law SchoolLL.M. in Corporate & Financial Law
  • 12 Months
Bestseller
Jindal Global Law SchoolJindal Global Law SchoolLL.M. in Intellectual Property & Technology Law
  • 12 Months
Jindal Global Law SchoolJindal Global Law SchoolLL.M. in Dispute Resolution
  • 12 Months
IIITBIIITBExecutive Program in Generative AI for Leaders
  • 4 Months
New
IIIT BangaloreIIIT BangaloreExecutive Post Graduate Programme in Machine Learning & AI
  • 13 Months
Bestseller
upGradupGradData Science Bootcamp with AI
  • 6 Months
New
upGradupGradAdvanced Certificate Program in GenerativeAI
  • 4 Months
New
KnowledgeHut upGradKnowledgeHut upGradSAFe® 6.0 Certified ScrumMaster (SSM) Training
  • Self-Paced
upGrad KnowledgeHutupGrad KnowledgeHutCertified ScrumMaster®(CSM) Training
  • 16 Hours
upGrad KnowledgeHutupGrad KnowledgeHutLeading SAFe® 6.0 Certification
  • 16 Hours
KnowledgeHut upGradKnowledgeHut upGradPMP® certification
  • Self-Paced
upGrad KnowledgeHutupGrad KnowledgeHutAWS Solutions Architect Certification
  • 32 Hours
upGrad KnowledgeHutupGrad KnowledgeHutAzure Administrator Certification (AZ-104)
  • 24 Hours
KnowledgeHut upGradKnowledgeHut upGradAWS Cloud Practioner Essentials Certification
  • 1 Week
KnowledgeHut upGradKnowledgeHut upGradAzure Data Engineering Training (DP-203)
  • 1 Week
MICAMICAAdvanced Certificate in Digital Marketing and Communication
  • 6 Months
Bestseller
MICAMICAAdvanced Certificate in Brand Communication Management
  • 5 Months
Popular
IIM KozhikodeIIM KozhikodeProfessional Certification in HR Management and Analytics
  • 6 Months
Bestseller
Duke CEDuke CEPost Graduate Certificate in Product Management
  • 4-8 Months
Bestseller
Loyola Institute of Business Administration (LIBA)Loyola Institute of Business Administration (LIBA)Executive PG Programme in Human Resource Management
  • 11 Months
Popular
Goa Institute of ManagementGoa Institute of ManagementExecutive PG Program in Healthcare Management
  • 11 Months
IMT GhaziabadIMT GhaziabadAdvanced General Management Program
  • 11 Months
Golden Gate UniversityGolden Gate UniversityProfessional Certificate in Global Business Management
  • 6-8 Months
upGradupGradContract Law Certificate Program
  • Self paced
New
IU, GermanyIU, GermanyMaster of Business Administration (90 ECTS)
  • 18 Months
Bestseller
IU, GermanyIU, GermanyMaster in International Management (120 ECTS)
  • 24 Months
Popular
IU, GermanyIU, GermanyB.Sc. Computer Science (180 ECTS)
  • 36 Months
Clark UniversityClark UniversityMaster of Business Administration
  • 23 Months
New
Golden Gate UniversityGolden Gate UniversityMaster of Business Administration
  • 20 Months
Clark University, USClark University, USMS in Project Management
  • 20 Months
New
Edgewood CollegeEdgewood CollegeMaster of Business Administration
  • 23 Months
The American Business SchoolThe American Business SchoolMBA with specialization
  • 23 Months
New
Aivancity ParisAivancity ParisMSc Artificial Intelligence Engineering
  • 24 Months
Aivancity ParisAivancity ParisMSc Data Engineering
  • 24 Months
The American Business SchoolThe American Business SchoolMBA with specialization
  • 23 Months
New
Aivancity ParisAivancity ParisMSc Artificial Intelligence Engineering
  • 24 Months
Aivancity ParisAivancity ParisMSc Data Engineering
  • 24 Months
upGradupGradData Science Bootcamp with AI
  • 6 Months
Popular
upGrad KnowledgeHutupGrad KnowledgeHutData Engineer Bootcamp
  • Self-Paced
upGradupGradFull Stack Software Development Bootcamp
  • 6 Months
Bestseller
KnowledgeHut upGradKnowledgeHut upGradBackend Development Bootcamp
  • Self-Paced
upGradupGradUI/UX Bootcamp
  • 3 Months
upGradupGradCloud Computing Bootcamp
  • 7.5 Months
PwCupGrad CampusCertification Program in Financial Modelling & Analysis in association with PwC India
  • 5 Months
upGrad KnowledgeHutupGrad KnowledgeHutSAFe® 6.0 POPM Certification
  • 16 Hours
upGradupGradDigital Marketing Accelerator Program
  • 05 Months
upGradupGradAdvanced Certificate Program in GenerativeAI
  • 4 Months
New
upGradupGradData Science Bootcamp with AI
  • 6 Months
Popular
upGradupGradFull Stack Software Development Bootcamp
  • 6 Months
Bestseller
upGradupGradUI/UX Bootcamp
  • 3 Months
PwCupGrad CampusCertification Program in Financial Modelling & Analysis in association with PwC India
  • 4 Months
upGradupGradCertificate Course in Business Analytics & Consulting in association with PwC India
  • 06 Months
upGradupGradDigital Marketing Accelerator Program
  • 05 Months

Java Vs. JavaScript: Difference Between Java and JavaScript

Updated on 11 November, 2024

1.99K+ views
10 min read

The naming of these two languages is the reason behind the massive confusion between the two languages, i.e., Java and JavaScript. Just because JavaScript shares the word, Java non-tech people quickly assume Java to be a superset of JavaScript. The truth is very far from this assumption. While the fact remains that the development of both of these languages had something in common when Netscape was the best available tool to surf the World Wide Web.

However, since that time, these two languages have separated from each other and now have become two very different entities. Both Java and JavaScript have established their unique identities in the tech world, making both of these languages crucial to master their respective domains. It is a running joke in the tech community that Java and JavaScript’s relationship is that of ham and hamster (making them two very different things). 

Check out our free courses to get an edge over the competition

If the question, what is the difference between java and javascript? Had been posted about five years ago, the answer to it would have been straightforward. Java was considered to be a general language with various and varied applications, whereas JavaScript was the language that enabled Web apps and Websites to be more responsive and dynamic.

The comparison of java vs. javascript would be very different in the context of the 21st century. The main reason which makes the comparison complicated is that JavaScript has matured a lot as a language and is no longer limited to just being used in web technologies. 

Before we answer the question, what is the difference between java and javascript? In the modern context, we must first understand both of these languages intricately in this paradigm. 

upGrad’s Exclusive Software Development Webinar for you –

SAAS Business – What is So Different?

Java

Java is a programming language, and this bit should be evident by now. Java was invented rather than created by James Gosling at Sun Microsystems. The development of Java was not easy; however, it took the group closer to about four years to make a capable language. Java, which saw the daylight in the year 1995, and since then has taken the entire world by storm.

Check out upGrad’s Advanced Certification in Cloud Computing 

You can see the internet to be filled to the brim with apps and technologies which are based out of Java. Even the android operating system, which is present on almost every modern-day smartphone, also has its roots in Java. Credit has to go to Java to make our lives much more straightforward. Oracle is the proud owner of Java in the modern-day.

Java Features

The key characteristics of Java are listed below. 

  • Run code one time, and practically any computing platform will execute it. 
  • The creation of object-oriented programmes is its intended use. 
  • It has autonomous memory management and is a multithreaded language. 
  • Since it is network-centric, it makes collaborative computing easier. 

In the later section, check the features of JavaScript to understand the difference between Java and JavaScript better. 

Java: What is it Used For?

Whether a server, website backend, game, mobile app, or desktop application, build any of these with Java. It is even compatible with machines. When you conduct a search on Wikipedia’s website or mobile application, Java is used to carry out your inquiries. It even manages the systems in Mars rovers. From Twitter to Netflix, every big web-based business leverages the power and services of Java. 

Java Advantages

Here are some advantages to utilizing Java. 

  • There is thorough documentation available. 
  • There is a sizable pool of knowledgeable developers. 
  • Numerous third-party libraries. 
  • It enables the creation of reusable code and standardized programmes. 
  • Outstanding performance. 
  • Libraries that are simple to use. 

Java Disadvantages

The disadvantages of using Java are as follows: 

  • The program runs somewhat slowly because of the JIT compiler. 
  • Java necessitates a huge amount of computing memory and power.
  • Hardware prices consequently rise. Low-level coding constructs, such as pointers, are not supported. 

Compare the pros and cons of Java with the ones of JavaScript to better differentiate between both and come to a conclusion for Java vs JavaScript.

Read more: How to Code, Compile and Run Java Projects

JavaScript

When the internet was still taking its baby steps, and it was far from the behemoth, we know it was just two leading web browsers today. The entire web race belonged to Internet Explorer and Netscape navigator. In merely ten days, a developer who goes by the name of Brendan Eich saw the need for a language that can directly talk with the browser. This language was created to accommodate the user’s interaction with the web browsers and websites.

LiveScript’s language was invented with the capability to instruct the browser directly whenever any user input was found. The development of this new language LiveScript took just about ten days for the developer, and soon he integrated this new language with the Netscape navigator. 

Check out upGrad’s Advanced Certification in Cyber Security

Livescipt enabled the browser to interpret the user and the commands which users send. It eliminated the need to re-compile or compile the code and made the use of plugins for this task completely obsolete. This language of LiveScript was created at the time when another programming language, which goes by the name of Java, was gaining popularity.

To ride on the java wave and gain some momentum in a marketing ploy, which leads to all this confusion, the developer re-named this language to what we know now as JavaScript.

Must Read: Javascript Project Ideas & Topics 

JavaScript Features

When comparing Java vs JavaScript, consider these salient features of JavaScript:

  • Given its solid reputation as a cross-platform language, programmers use it for both server-side and client-side applications.
  • Strong Workflow for Testing 
  • Learning and getting started with programming are simple. 
  • Added/increased dependencies 

JavaScript: What is Used For?

W3Techs says that in November 2022, 97.8% of websites leveraged JavaScript. Today, the internet has more than 1.98 billion websites, says the First Site Guide. 

That is a significant amount of JavaScript. It can transform a website into a working application that runs in your web browser from a static brochure-style website. You can create JavaScript for the back end because it can execute in Node environments. It can carry out controller operations, routing, an API service, or any combination of them at once. 

You can use Node to have a complete JavaScript stack. When it comes to type script vs JavaScript, the latter can be used to create games. It may be used to create games for nearly any device having a web browser because it is especially well-suited for mobile and internet games. 

JavaScript Advantages

Using JavaScript has the following advantages: 

  • It is an open-source effort supported by Microsoft. 
  • A tool specifically created for short scripts. 
  • Enables modules, classes, and interfaces. 
  • Any browser can run JavaScript that has been compiled. 
  • Permits cross-compiling. 
  • JavaScript may be extended to create complex apps. 
  • On the user’s PC, you can store and retrieve data using JavaScript. 
  • Feedback is given right away to visitors. 
  • It enables you to design graphical user interfaces that respond to mouse hovering. 

JavaScript Disadvantages

The following are negative aspects of utilizing JavaScript client-side. 

  • Security concerns have led to its preservation. 
  • Due to the lack of support, JavaScript cannot be utilized for networking applications. 
  • JavaScript lacks multithreading and multiprocessor capabilities. 

Java vs. JavaScript

The languages of Java and JavaScript were written in a very different manner. Both of these languages differ vastly in the things they are capable of doing. In the table below, you will find a comprehensive comparison of Java vs JavaScript:

JAVA JAVASCRIPT
Java is a stringent language. The language’s syntax must be strictly followed if you want the program to run like you want it to run. A straightforward example would be the declaration of variables. In Java, you will have to declare the type of a variable before using them in your program. The errors and the kind that the variable is of would be checked at the program’s compilation time. JavaScript differs massively from Java in this regard. You can type a much more flexible code in this language. The syntax and the rules you would have to follow while writing the JavaScript code are very relaxed when you compare it with a language like Java.
Java follows the OOPS (Object Oriented Programming) concepts and is an OOP language. JavaScript, on the other hand, is only an object-based language capable of writing scripts.
The code which is written in Java can be made to run anywhere. You can even run the java code in any virtual environment or even the web browser. The code you write in the language of JavaScript was only capable of running in the web browser. But, now, with the addition of Node.js, JavaScript can also run on servers handling the backend as well as frontend.
For the creation of any objects in the Java programming language, you will have to create classes. Without creating classes, no program can be made to run in Java. The objects in JavaScript are based on a prototype.
Any program written in java would have the extension of “.Java”. This code that you have written in Java would be executed in a JVM. The file extension of any program written in JavaScript is .js, and it can be interpreted in almost every web browser. However, to compile and run a JavaScript code, the browser must have the JavaScript interpreter.
Java is a fully fleshed out language that has its own footing. JavaScript is present on every web page. It works hand in hand with the code written in HTML.
To run a Java code, you will need more memory. The JavaScript code is very light because it has to run in a web browser.

Also Read: JavaScript vs JQuery: Difference Between JavaScript and JQuery

Get Software Engineering degrees from the World’s top Universities. Earn Executive PG Programs, Advanced Certificate Programs, or Masters Programs to fast-track your career.

Wrapping Up

If you’re interested to learn more about Java, full-stack development, check out upGrad & IIIT-B’s Executive PG Program in Full-stack Software Development which is designed for working professionals and offers 500+ hours of rigorous training, 9+ projects, and assignments, IIIT-B Alumni status, practical hands-on capstone projects & job assistance with top firms.

Frequently Asked Questions (FAQs)

1. Where is JavaScript used in real life?

JavaScript is one of the ten most popular programming languages in the world. It is based on typescript and is used for both client and server-side programming to develop dynamic, interactive web pages. Interactive elements are required to increase the levels of engagement with the website visitors. So essentially, JavaScript helps boost the user experience on the webpage and makes it dynamic. Some of the most common instances of where JavaScript is used in the real world include news recap videos embedded in some online news website, the search button on Amazon, or when you refresh your Twitter page feed.

2. Which one is more used between Python and JavaScript?

Both Python and JavaScript are hugely popular programming languages. Basically, JavaScript is a scripting language that enhances the ease of use of web pages by automating websites and various processes within apps. On the other hand, Python is a programming language based on object-oriented principles. Both languages have their unique pros and cons when it comes to their uses. Both JavaScript and Python are extensively employed in developing ERP applications and website development. However, Python is preferred in emerging technological fields like AI, ML, and data analytics. But JavaScript is more extensively used since it has been around for a longer time and is more familiar with programmers.

3. How is a programmer different from a hacker?

A programmer is an individual who applies their programming language skills to develop software products and propose technological solutions. Whether it is using scripting languages for basic program development or employing complex coding to build AI services – a programmer's tasks involves excellent versatility. A programmer who is trained formally becomes a developer. A hacker is an individual who makes things work their way by programming computers. This also includes interfering with existing things or trying to break open software programs and modify them stealthily to serve some specific interests that are often toxic. All developers and hackers are actually programmers.

RELATED PROGRAMS