Before starting to compare actual differences, let’s start with terminology.
There are a few similarities between both languages.
- Both of these languages are not inherently open-source and are licensed.
- They both can create cool apps for
- Mobile Apps
- Web Servers
- Terminal Apps
If there are more similarities, let me know through comments.
- Java has 846,624 repositories.
These figures were taken on 2nd April 2020
The Learning Curve
- Many documentations, tutorials, videos, and free courses are available, plus a strong community.
- ES6+ stuff seems harder to make sense in the beginning but get’s easier over time and is excellent in practice.
- Each JS Library and API requires additional time to master.
Java is a bit intimidating for newbies. It’s usually taught in Colleges and Universities as an introduction to Object-Oriented Programming. It follows strict syntax and generally makes you better at it by error messages. Java doesn’t have a built-in memory allocator, so it’s up to the programmers, which is not so easy.
- Java is rich with documentation, community support, tutorials, courses, and guidelines.
- Concepts like Threads, Reflections, IO, Synchronization, and monitoring are difficult to master.
- Efficient memory utilization is only done properly by good Java programmers.
Salary & Pay Gap
It mostly depends on where you are hiring from, skill level, and project complexity.
- Europe: Average pay is much different depending on the country.
- Asia: Cheapest option available, averaging around $6 - $12 per hour.
*Salaries can vary by huge margins, figures listed above are average.
- Single Page Applications.
- Via React, Angular, or Vue.
- Advanced HTTP Servers and APIs.
- Via ExpressJS, Restify, or simple HTTP module.
- Mobile Apps for Android and iOS.
- Via React Native.
- Live Apps.
- Via Socket.io or WebSockets.
- Terminal based apps.
- Via Readline, prompt, etc.
- Web Scraping.
- Via Cheerio, Puppeteer, Selenium, etc.
- Windows, Linux, and Mac Apps.
- Via Electron (eg Visual Studio Code).
- Internet of Things development and embedded electronics
- Via Johnny-Five, Cylone and more.
- Make use of popular Databases
- Via Mongoose, MySQL, sequelize, etc.
- Make cool games
- Via Canvas API
- Multiple JS-based gaming engines.
- AI and Machine Learning
- Via TensorFlow, BrainJS, and more.
Java is used for many types of applications, it’s mainly used by enterprises or large projects.
- Android Apps.
- General-purpose hardware programming with more control.
- Software and games for Windows, Mac, Linux, and other platforms.
- Advanced calculations and data reporting.
- Supports all major databases.
- Make amazing games.