Java Vs Javascript - Differences & Similarities

Each of these programming languages has its use, regard, and strength. Java Vs JavaScript perform different tasks. This article will discuss the history, similarities, differences, and advantages of Java and JavaScript.

Brief History of Java

Java is an object-oriented, class-based language invented by James Gosling and further developed by Sun Microsystems. Back in 1991, Sun Microsystem engineers called the "Green Team" worked tirelessly to create Java. Several new versions have been launched since its first release in 1995. Today, more than 80% of fortune 500 companies for building applications and back-end systems. 

Brief History of JavaScript

In 1990 during the early days of the internet, Internet Explorer and Netscape Navigator were the two most popular browsers. Brenden Eich at Netscape, Inc. invented a programming language that could instruct the computer on how to communicate with the user upon receiving user input. This language was called "Live script." That means the browser was interpreting the commands of the user. The compilation of the code was not required, and also the plug-in. Around the same time, Java was gaining popularity, and Netscape renamed its language "JavaScript."

Java Vs JavaScript - Similarities

Object-Oriented Programming (OOP)

Both are programming languages and contain code to create objects and the relationships between them. These languages can use various features such as inheritance, encapsulation, and polymorphism.

Front-End Development

Did you know that both Java and JavaScript are the most popular languages for web application development? Statistics show that more than 90% of companies use Java and Java applications. JavaScript is implemented as a framework or library for front-end development when embedded directly in HTML. At the same time, Java can be used as a Java application to create beautiful front-ends.

Back-end Development

On the server-side, both Java and JavaScript can be used. Developers use Java to support back-end technologies such as JBoss, WebSphere, and Apache. Node.js provides the back-end development environment needed to run JavaScript servers.

Browser Compatibility

Java and JavaScript are browser compatible, meaning they can use them in a browser. JavaScript can be used in most modern browsers, making it the preferred choice for web development. On the other hand, Java-supported applications can also run in a browser. However, Java applications are less popular due to various issues such as compatibility and security.

Web development

Java-driven Java Applets, on the other hand, can run in a browser too. Though, Java Applets are less popular as it causes several issues such as security and compatibility.

JavaScript Vs Java - Differences

Programming Paradigm

The main difference between the two languages lies in their programming worldview, i.e., how the programming language approaches problem-solving. Java is an object-oriented programming language based on the idea of objects. At the same time, JS is a multilingual language and can be used as an object-oriented programming language, a procedural language, or a scripting language.

Type checking

Type checking ensures that a variable is different. JS is a dynamically typed language, which means that the author's type is not known until the program is completed. Java is a statically compiled language, so every aspect must have a type declaration.

Inheritance

Inheritance allows an aspect to acquire or derive the properties of another aspect. Java allows one class to set the properties of another class. It is also the basis for many inheritance methods that allow a group to get things from different classes. JS is based on the template idea and does not support different aspects.

Capability overloading

Task overloading allows a programming language to label at least two capabilities with the same name to perform different tasks. However, the capability is ambiguous due to declarations. Java supports overloading, but JS does not.

Multithreaded execution

Multithreaded execution reduces the execution time by executing multiple parts of the program. That allows the processor to be used at the same time. Java supports multithreading, but JS does not because the program's compiler is monolingual.

Advantages of Using Java

Java is a multithreaded object-oriented programming language so that it can perform several tasks simultaneously. Java can compile programs into native code at compile-time, which is usually faster than a compiled program at run time because compilation is faster. This process is faster because it involves overhead in the process.

Over the years, many open source tools and IDEs have been developed, such as Netbeans and Eclipse. Java provides several application programming interfaces (APIs) to support application development. Java APIs can be used as commands or communication methods for various programming operations, such as XML structures, network connections, input/ output operations, and database connections. Java APIs can be used as commands or communication methods for various programming operations, such as XML structures, network connections, input/output operations, and database connections.

Advantages of Using JavaScript

JavaScript is an interpreted language that offers application developer's additional flexibility compared to Java applications. JavaScript is relatively faster than Java because compilers execute the source code of the program themselves.

JavaScript supports features such as dynamic writing and small executable programs. Unlike Java, JavaScript can be used in different applications. JavaScript supports several mapping tools, such as CoffeeScript, TypeScript, Babel (ES6 to ES5), and Elm. The good thing about CoffeeScript is that it has simple functions that can be written as variables.

Java vs Javascript which is better? - Conclusion

Beginners will learn that both Java and JavaScript are languages that will enhance their programming repertoire. Many programmers and developers believe that it is wise for beginners to learn Java and then Javascript one by one from the beginning. Knowledge of Java and JavaScript will undoubtedly increase a developer's employability and lead to more lucrative jobs in the future.