Author: Tantoluwa Heritage Alabi
Publication Date: 26.03.2024
Java and JavaScript sound similar, so when people see these words, they assume they are related or derived from each other. Java and JavaScript are both programming languages and they serve different purposes.
What is Java?
Java is a general-purpose, object-oriented programming language used for developing web applications, mobile apps and embedded systems. Java can run on any platform with a Java Runtime Environment (JRE) installed.
Example of Java Code
Key Features of Java
● Java as a compiled programming language requires a Java Virtual machine (JVM) to run its code.
● Variables in Java have their data types defined , For example (int number = 5).
● Java programs can run on all platforms.
● Multithreading can be performed in Java whereby various tasks can be executed at the same time. This improves performance.
What is JavaScript?
JavaScript (JS) is a light-weight interpreted programming language of the web that is used to create dynamic and interactive elements. JavaScript code is typically embedded within HTML documents or included from external files and is executed by the web browser's built-in JavaScript engine.
Example of JavaScript Code
Key Features of JavaScript
● Code blocks in JavaScript are made up of functions and variables.
● JavaScript runs on all web browsers.
● JavaScript executes programs one at a time.
● JavaScript is an interpreted language that is executed at runtime.
Difference between Java and JavaScript
Java | JavaScript |
Java code is compiled into bytecode | JavaScript code is interpreted at runtime |
Java is used for server side development, for building desktop apps | JavaScript is used for creating interactive websites, UI element and backend systems for web |
Java is used in object oriented programming, making it reuse objects in other programs | JavaScript is easier to understand and has a simpler code structure |
Java is versatile and platform independent | JavaScript runs on web browsers and primary client side |
Java code is written on IDEs like intellij, Eclipse | JavaScript is written on IDEs like Visual Studio code and Sublime Text |
Some examples of Java frameworks are Spring boots (frameworks), GWT, Grails | Some example of JavaScript frameworks are React, Angular, Vue and React Native |
Java supports multithreading whereby two or more parts of a program are executed at the same time | JavaScript performs form validation based, can handle date and time |
Conclusion
Java and JavaScript, despite their similar names, are distinct languages with different strengths. Java shines in building complex, robust applications across various platforms. JavaScript reigns supreme in the realm of web development, adding interactivity and dynamism to web pages. While their functionalities may overlap in some areas, understanding their core differences empowers you to choose the right tool for your project.
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