06/04/2023 2:03 pm
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Explain briefly.
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1
06/04/2023 3:02 pm
Java is an OOP programming language, and it helps to create applications that function in a virtual machine or browser, while JavaScript is an OOP scripting language. Also, the JavaScript code runs on a browser only.
0
06/04/2023 5:14 pm
The difference between Java and JavaScript is as follows:
| Java | JavaScript |
|---|---|
| Java is a strongly typed language and variables must be declared first to use in the program. In Java, the type of a variable is checked at compile-time. | JavaScript is a loosely typed language and has a more relaxed syntax and rules. |
| Java is an object-oriented programming language primarily used for developing complex enterprise applications. | JavaScript is a scripting language used for creating interactive and dynamic web pages. |
| Java applications can run in any virtual machine(JVM) or browser. | JavaScript code used to run only in the browser, but now it can run on the server via Node.js. |
| Objects of Java are class-based even we can’t make any program in java without creating a class. | JavaScript Objects are prototype-based. |
| Java program has the file extension “.Java” and translates source code into bytecodes which are executed by JVM(Java Virtual Machine). | JavaScript file has the file extension “.js” and it is interpreted but not compiled, every browser has the Javascript interpreter to execute JS code.if compile time |
| Java is a Standalone language. | contained within a web page and integrates with its HTML content. |
| Java has a thread-based approach to concurrency. | Javascript has an event-based approach to concurrency. |
| Java supports multithreading, which allows multiple threads of execution to run concurrently within a single program. | JavaScript does not support multithreading, although it can simulate it through the use of web workers. |
| Java has a rich set of libraries and frameworks for building enterprise applications, such as Spring, Hibernate, and Struts. | JavaScript has a wide variety of libraries and frameworks for building web applications, such as React, Angular, and Vue. |
| Java is mainly used for backend | Javascript is used for the frontend and backend both. |
| Java is statically typed, which means that data types are determined at compile time. | JavaScript is dynamically typed, which means that data types are determined at runtime. |
| Java is typically used on the server-side for building web applications, as well as for desktop and mobile applications. | JavaScript is primarily used on the client-side for building web applications, although it can also be used on the server-side with technologies like Node.js. |
| Java uses more memory | Javascript uses less memory. |
| Java requires a Java Development Kit(JDK) to run the code | Javascript requires any text editor or browser console to run the code |
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06/04/2023 8:27 pm
Here are some key differences between Java and JavaScript in points:
Java:
- Java is a fully object-oriented programming language, while JavaScript is an object-based language.
- Java is a statically-typed language, while JavaScript is a dynamically-typed language.
- Java code is compiled and then executed, while JavaScript code is interpreted and executed directly by the browser or runtime environment.
- Java is used primarily for developing server-side applications, standalone applications, and Android mobile applications, while JavaScript is primarily used for developing client-side web applications and also for server-side applications using Node.js.
- Java has strong support for multithreading and concurrency, making it suitable for building complex and highly scalable applications.
- Java is often used for building enterprise-level applications due to its robustness and scalability.
- Java code is executed on the JVM (Java Virtual Machine), which provides a layer of abstraction between the code and the underlying operating system.
JavaScript:
- JavaScript is a scripting language primarily used for developing client-side web applications, and it can also be used for server-side development using Node.js.
- JavaScript code is interpreted and executed directly by the browser or runtime environment, without the need for compilation.
- JavaScript is a dynamically-typed language, which allows for greater flexibility and faster development.
- JavaScript has a lightweight syntax that is easy to learn and use.
- JavaScript is often used for building interactive user interfaces and web applications due to its ability to manipulate the Document Object Model (DOM) of web pages.
- JavaScript has become increasingly popular for server-side development with the rise of Node.js, which allows developers to write JavaScript code that runs on the server.
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07/04/2023 4:57 am
