Java vs JavaScript vs Python

Java
Java

18.8K
15.4K
3.2K
JavaScript
JavaScript

41.9K
13.5K
7.3K
Python
Python

23.4K
16.5K
5.8K
- No public GitHub repository available -
- No public GitHub repository available -

What is Java?

Java is a programming language and computing platform first released by Sun Microsystems in 1995. There are lots of applications and websites that will not work unless you have Java installed, and more are created every day. Java is fast, secure, and reliable. From laptops to datacenters, game consoles to scientific supercomputers, cell phones to the Internet, Java is everywhere!

What is JavaScript?

JavaScript is most known as the scripting language for Web pages, but used in many non-browser environments as well such as node.js or Apache CouchDB. It is a prototype-based, multi-paradigm scripting language that is dynamic,and supports object-oriented, imperative, and functional programming styles.

What is Python?

Python is a general purpose programming language created by Guido Van Rossum. Python is most praised for its elegant syntax and readable code, if you are just beginning your programming career python suits you best.

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Why do developers choose Java?
Why do developers choose JavaScript?
Why do developers choose Python?
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What are the cons of using JavaScript?
What are the cons of using Python?
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What companies use JavaScript?
What companies use Python?
What are some alternatives to Java, JavaScript, and Python?
C
Abstract
Abstract builds upon and extends the stable technology of Git to host and manage your work.
Go
Go is expressive, concise, clean, and efficient. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel type system enables flexible and modular program construction. Go compiles quickly to machine code yet has the convenience of garbage collection and the power of run-time reflection. It's a fast, statically typed, compiled language that feels like a dynamically typed, interpreted language.
Scala
Scala is an acronym for “Scalable Language”. This means that Scala grows with you. You can play with it by typing one-line expressions and observing the results. But you can also rely on it for large mission critical systems, as many companies, including Twitter, LinkedIn, or Intel do. To some, Scala feels like a scripting language. Its syntax is concise and low ceremony; its types get out of the way because the compiler can infer them.
Kotlin
Kotlin is a statically typed programming language for the JVM, Android and the browser, 100% interoperable with Java
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What tools integrate with Java?
What tools integrate with JavaScript?
What tools integrate with Python?
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    Decisions about Java, JavaScript, and Python
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    Reviews of Java, JavaScript, and Python
    Review ofJavaScriptJavaScript

    excellent!!

    How developers use Java, JavaScript, and Python
    Avatar of Andrew Faulkner
    Andrew Faulkner uses JavaScriptJavaScript

    Almost the entire app was written in Javascript, with JSON-based configuration and data storage. The following components were written and/or configured with Javascript:

    • Most server-side scripts, all unit tests, all build tools, etc. were driven by NodeJS.
    • ExpressJS served as the 'backend' server framework.
    • MongoDB (which stores essential JSON) was the main database.
    • MongooseJS was used as the main ORM for communicating with the database, with KnexJS used for certain edge cases.
    • MochaJS, ChaiJS, and ExpectJS were used for unit testing.
    • Frontend builds were done with Gulp and Webpack.
    • Package management was done primarily with npm - with a few exceptions that required the use of Bower (also configured with JSON).
    • "Templating" was done with Javascript dialect JSX.
    • The frontend was build primarily with ReactJS (as the View) and Redux (as the Controller / Store / frontend model).
    • Configuration was done with json files.

    The only notable exceptions were the use of SCSS (augmented by Compass) for styling, Bash for a few basic 'system chores' and CLI utilities required for development of the app (most notably git and heroku's CLI interface), and a bit of custom SQL for locations where the ORM extractions leaked (the app is DB-agnostic, but a bit of SQL was required to fill gaps in the ORMs when interfacing with Postgres).

    Avatar of Exchange rates API
    Exchange rates API uses PythonPython

    Beautiful is better than ugly.

    Explicit is better than implicit.

    Simple is better than complex.

    Complex is better than complicated.

    Flat is better than nested.

    Sparse is better than dense.

    Readability counts.

    Special cases aren't special enough to break the rules.

    Although practicality beats purity.

    Errors should never pass silently.

    Unless explicitly silenced.

    In the face of ambiguity, refuse the temptation to guess.

    There should be one-- and preferably only one --obvious way to do it.

    Although that way may not be obvious at first unless you're Dutch.

    Now is better than never.

    Although never is often better than right now.

    If the implementation is hard to explain, it's a bad idea.

    If the implementation is easy to explain, it may be a good idea.

    Namespaces are one honking great idea -- let's do more of those!

    Avatar of OutSystems
    OutSystems uses JavaScriptJavaScript

    Read more on how to extend the OutSystems UI with Javascript here.

    OutSystems provides a very simple to use AJAX mechanism. However, developers can also use JavaScript extensively to customize how users interact with their applications, to create client side custom validations and dynamic behaviors, or even to create custom, very specific, AJAX interactions. For example, each application can have an application-wide defined JavaScript file or set of files included in resources. Page-specific JavaScript can also be defined.

    Avatar of Gorka Llona
    Gorka Llona uses JavaScriptJavaScript

    This GNU/GPL licensed Javascript library allows you to draw complex organizational charts that can't be drawn using Google's tool or equivalents. Orgchart structures are specified with JSON and can be generated on-the-fly by server-side scripts and databases. Events can be attached to clicks over the boxes. Multiple options can be defined; look at the repo for examples. This 1300-code-lines software component with contributors from 8 countries (and others for which I have to integrate their works) appears in the first page of Google Search results when searching for "Javascript Organizational Chart Library".

    Avatar of Brian Fults
    Brian Fults uses JavaJava

    Pretty much everything - Java is reasonably fast, reasonably safe, and reasonably expressive. I wouldn't call it the best at any of those things. The real advantage to me is that the virtual machine is ubiquitous and many people can understand it. Since I have the most experience in this language, it's my tool of choice for most projects.

    I've also been learning JavaFx so that I can build user interfaces without the web. I've started several single-page-application projects that worked, but felt like workarounds or hacks and would be better-served as self-contained applications.

    Avatar of Cloudcraft
    Cloudcraft uses JavaScriptJavaScript

    JavaScript gets a bad rep, quite undeservedly so in my opinion. Today, JS is closer to functional languages than to the traditional-OO languages, and when used as such provides a great development experience. The pace of development is just picking up with transpilers like Babel making future advanced language features available to the masses today. At Cloudcraft.co, we write 100% of both the front-end (with React) and the backend (with Node.js) in Javascript, using the latest ES6 and even some ES7 features. This is not your grandfather's Javascript!

    Avatar of MOKA Analytics
    MOKA Analytics uses JavaScriptJavaScript

    The application front-end is written in JavaScript (ES6). We originally selected it over TypeScript because many library typings at the time were still flaky and the transpilation time was slow.

    We are now re-considering TypeScript because 1) the tooling has improved significantly, and 2) and the root cause of the majority of our front-end bugs are related to typing (despite having PropTypes).

    Avatar of denkbar.io
    denkbar.io uses JavaJava

    Do I really need to explain? Well to me, the most appealing factor in Java besides the unbelievable community and vast array of available libraries, is just the amount of effort that has been put in the modern JVM. Decades of optimization and improvements have lead to a terrific piece of technology. I admire the people contributed to that.

    Avatar of Web Dreams
    Web Dreams uses PythonPython

    To me, this is by far the best programming language. Why? Because it’s the only language that really got me going after trying to get into programming with Java for a while. Python is powerful, easy to learn, and gets you to unsderstand other languages more once you understand it. Did I state I love the python language? Well, I do..

    Avatar of ttandon
    ttandon uses PythonPython

    Backend server for analysis of image samples from iPhone microscope lens. Chose this because of familiarity. The number one thing that I've learned at hackathons is that work exclusively with what you're 100% comfortable with. I use Python extensively at my day job at Wit.ai, so it was the obvious choice for the bulk of my coding.

    Avatar of papaver
    papaver uses PythonPython

    been a pythoner for around 7 years, maybe longer. quite adept at it, and love using the higher constructs like decorators. was my goto scripting language until i fell in love with clojure. python's also the goto for most vfx studios and great for the machine learning. numpy and pyqt for the win.

    Avatar of Scrayos UG (haftungsbeschränkt)
    Scrayos UG (haftungsbeschränkt) uses JavaJava

    Shouldn't surprise anyone, as minecraft is also java-based. Java is used for much more than just the plugins though. JCVortex (our API) is also served with vert.x (Java) and many of our team-internal tools also originated from java or are still java-applications.

    Avatar of Web Dreams
    Web Dreams uses JavaJava

    The most popular language in the world, definitely every programmer would use the Java language at some point. Frankly, I only use java when it’s a must. I find the language to be a little bit tedious when working with it.

    Avatar of brenoinojosa
    brenoinojosa uses JavaJava

    bytelore.com makes extensive use of Java in its applications. We use Java due to its performance, community and the number of other projects built in the language. We have many projects and libraries built in Java.

    Avatar of Blood Bot
    Blood Bot uses PythonPython

    Large swaths of resources built for python to achieve natural language processing. (We are in the process of deprecating the services written in python and porting them over to Javascript and node)

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