The PYPL Popularity of Programming Language Index maintains that Java is the second most popular programming language in the world, after Python.
Although the programming world is fast-evolving, Java has remained a constant in the programming and software development world ever since its inception. It has evolved and upgraded continually to keep pace with the changing software development needs.
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What is Java?
James Gosling at Sun Microsystems developed and launched Java way back in 1995. It is a general-purpose, class-based OOP programming language that is designed to have minimal implementation dependencies. Java’s syntax is primarily based on C and C++. This allows developers to create stable, secure, and resilient applications that can run on multiple platforms, including Mac, Linux, and Windows operating systems.
The best part about coding in Java is that it follows the WORA (write once, run anywhere) principle. Thus, once you compile a Java code, it can run on all platforms that support Java – you don’t need to recompile it.
Java is a versatile programming language as it drives innovation and reduces time and costs significantly. Today, Java is the chosen language for IoT applications, enterprise applications, cloud computing, desktop GUI applications, web apps, mobile apps, embedded systems, Big Data systems, and AI applications.
Why Learn Java?
If you’re still wondering why to learn Java, here are five reasons why you should:
- It is extremely popular and commands a high salary
According to GitHub, Java is used by over 9 million developers worldwide, making it one of the most popular programming languages. Thanks to its diverse and multiple use cases, Java is always in high demand in the market. Consequently, companies readily pay high annual packages to hire experienced and qualified Java developers. Learn more about java developer salary in India.
- It is a versatile OOP language
Java is an OOP language, meaning it includes the core OOP concepts like objects, classes, inheritance, encapsulation, and polymorphism. It is a platform-independent language, which means that Java is compatible with multiple platforms – you can run a bytecode on any hardware featuring a compliant JVM. It is a versatile language because it supports dynamic coding, stores the code in an OOP format, and is highly secure.
- It comes with powerful tools
One of the most exciting things about learning and using Java is that it comes with a host of tools to help make software development smooth and seamless. Java libraries like java.lang, java.util, java.io, JHipster, Maven, Guava, etc., and IDEs like Eclipse, NetBeans, and IntelliJ IDEA, expand the functionality of Java significantly. Thanks to these nifty tools, tasks like debugging, automated refactoring, syntax highlighting, etc., become much more manageable. Learn more about Java frameworks.
- It has excellent documentation
Javadoc is the documentation generator for Java, and it uses the Java source code to generate API documentation in HTML format. By doing so, Javadoc ensures that Java code has excellent and easy-to-understand references, thereby allowing users to grasp Java code pretty easily.
- A large community backs it
Java boasts of having a large online community of Java developers and users of all levels beginner, advanced, and expert). So, if ever you get stuck while working on a Java project, you can always reach out to the Java community for help.
Learn Java Online: The upGrad advantage
With the pandemic still raging, the best course of action is to learn Java online. There are plenty of self-paced introductory Java courses and professional certificate Java courses that aim to teach candidates basic and advanced Java programming skills and groom them for the job world.
After completing a Java certification program, you can bag promising job roles like Java Developer, Java Engineer, Java Analyst, Android Developer, Big Data Engineer, etc.
If you’re looking for a free Java course, upGrad offers an excellent free Java course as a part of its upStart-Priceless Learning initiative.
upStart is upGrad’s free learning ecosystem designed exclusively to help aspirants develop relevant and trending industry skills to stay ahead of the competitive curve. As a part of this initiative, you can choose the free Java course and enjoy perks like one-on-one mentorship, top-notch content and learning resources, live learning sessions and lectures, and a certificate of completion – all free of cost!
upGrad’s Priceless Learning initiative will not only help you fast track your career growth, but it will also help you upskill within six weeks.
The free Java course is designed in collaboration with leading industry experts. There are five modules under this course:
- Variables & Datatypes
In this module, you’ll learn about programming variables, including the syntax and semantics of Java. Also, you’ll learn about the different data types in Java.
- Conditionals, Loops & Functions
This module focuses on imparting knowledge about the use cases of operators, conditional statements, and loops and how to use them in a code to avoid repetition.
- Object-Oriented Analysis & Design
You will learn about the intricacies of object-oriented analysis and design and how they work in a system. The module will introduce you to the applications and benefits of object-oriented analysis and teach you how to create high-level system diagrams.
- Abstraction & Encapsulation
Here, you will learn about the framework of classes and objects and gain in-depth knowledge of two crucial OOP principles – Abstraction & Encapsulation.
- Inheritance & Polymorphism
This module will introduce you to the other two core modules of OOP – Inheritance & Polymorphism. You will learn about code re-usability by applying inheritance and polymorphism principles.
When you choose to upskill with upGrad, you will enjoy a multitude of benefits. As always, upGrad free courses are taught by best-in-class instructors and industry leaders. Furthermore, you will also engage in interactive sessions with mentors and instructors. So, if you wish to acquire Java skills, all you need to devote is six weeks with upGrad, and by the end of the course, you will be ready for the job market!
How to Start
To join our machine learning online course free, follow these simple steps:
- Head to our upStart page
- Choose the course you want to join
All the courses present on our upStart page are available for free and don’t require any monetary investment. These courses help you kickstart your learning journey and get acquainted with the fundamentals of such complicated subjects.
Sign up here to join our free machine learning course today.
If you have any questions or suggestions, please let us know through the comments. We’d love to hear from you.
If you’re interested to learn more about Java, full-stack development, check out upGrad & IIIT-B’s PG Diploma in Full-stack Software Development which is designed for working professionals and offers 500+ hours of rigorous training, 9+ projects, and assignments, IIIT-B Alumni status, practical hands-on capstone projects & job assistance with top firms.
Another coveted opportunity to get certified in Machine Learning is through IIT Delhi and upGrad’s 7-months Advanced Certificate Programme in Machine Learning. The course is designed for freshers and mid-level managers with a minimum of 1 to 10 years of experience in the field, and senior executives with over a decade of experience looking to develop knowledge of underlying mathematics in machine learning, optimization techniques, and evaluation metrics. Candidates require a minimum of a bachelor’s degree with 50% passing marks in Engineering, Science or Commerce to apply at one of the premier educational institutes in India. The industry-relevant course comprises 20 live sessions, 92 hours of learning, and 3 assignments designed to build practical skills in machine learning.