Java Free Online Course with Certification [2023]

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. You can also consider doing our Java Bootcamp course from upGrad to upskill your career.

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.

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Java is a very significant language because it is easily portable, it could be moved from one system to another easily. It is secure, provides good support, and is user-friendly. Java has a wide range of applicability, it is used in almost every field such as finance, e-commerce, big applications, etc. 

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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. 

Java developers are paid high salaries because companies look for good Java developers. Along with that, there is competition in the market which can be matched by constant upskilling. There are certain skillsets that the recruiters are looking for such as-

1. DBMS
2. Java technologies
3. Agile
4. Libraries
5. Programming Languages

• 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.

The OOP facilitates in the reusability of code, hiding features. The main features of OOP differentiate it from the non-OOP languages, the OOP features such as encapsulation, inheritance, and polymorphism. The OOP also brings other advantages such as abstraction, debugging, scalability, etc.

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• 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.

Java tools help Java developers in facilitating smooth development. With the help of the tools, the developers can test, develop, and deploy. The java developers could troubleshoot the problems using these tools by monitoring the progress. The tools help in doing away with the manual tasks and bring automation as well.

• 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. 

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Setting Up The Environment For Java

Setting up the Java environment on any operating system is a crucial step for developers aiming to harness the power of this versatile programming language. First, ensure you have installed the latest Java Development Kit (JDK). Visit the official Oracle website or adopt an open-source distribution like OpenJDK. These options offer a Java free certification course, a valuable resource for mastering Java fundamentals. 

Next, configure the system’s PATH variable to include the JDK’s ‘bin’ directory, allowing easy access to Java’s compiler and runtime tools from the command line. Integrated Development Environments (IDEs) like Eclipse, IntelliJ IDEA, or NetBeans streamline development; choose one that suits your preferences. As you embark on your Java journey, remember the Java online course with certificate can enhance your expertise significantly.

The basic setup steps remain consistent regardless of your operating system—Windows, macOS, or Linux. This process ensures you can seamlessly write, compile, and execute Java code. By leveraging the benefits of a Java certification course, you can gain a strong foundation in Java and open doors to various opportunities in the software development world.

Utilizing Java for Competitive Coding 

Leveraging Java for competitive coding, data structures, and algorithms empowers programmers to tackle complex problems efficiently. Java’s robust libraries and syntax make it an excellent choice for implementing intricate algorithms and data structures. To excel in this field, consider enrolling in free online Java courses with certificate of completion that solidifies your Java skills and provides insights into practical implementations.

Quick thinking and optimized code are requirements for competitive coding. The robust standard library of Java makes it easy to create a variety of data structures, which are essential for addressing algorithmic problems. You gain a solid foundation by comprehending these structures through a free Java Certification Course.

Additionally, Java’s OOP capabilities enable organized and modular code, which makes it easier to create sophisticated algorithms. Because of the reliability and platform independence of this language, your solutions will operate trustworthily on a variety of platforms. Integrating the knowledge from a free Java Certification Course can assist you in writing effective, beautiful, and error-free code as you practice competitive coding.

Incorporating Java into your data structures and algorithms toolkit opens avenues for solving diverse challenges. The principles and techniques acquired through the free Java course with certificate enable you to enhance your problem-solving skills and excel in coding competitions and technical interviews.

Object-Oriented Programming

The core of Java is Object-Oriented Programming (OOP), which contributes to its acceptance and adaptability. Because everything in Java is considered as an object, programmers may organize and modularize their code. Understanding OOP concepts is essential, and a Java online course with certificate free offers an ideal platform to grasp these concepts comprehensively.

Java incorporates the four principles of OOP. By combining data and methods, encapsulation assures data protection, while inheritance enables the development of new classes based on current ones. By concentrating on the most important elements, abstraction helps to simplify complex systems while polymorphism increases flexibility.

A Java free online course with certificate aids in the mastery of classes, objects, and methods. It clarifies the significance of access modifiers in encapsulation and the way that inheritance encourages code reuse. Additionally, the importance of polymorphism in developing adaptable applications and the function of abstraction in controlling complex systems are underlined.

Enrolling in a Java online course free with certificate gives insight into designing robust, maintainable, and extensible code using OOP principles. These skills are essential not only for Java development but also for understanding software design paradigms across languages. Ultimately, mastering OOP through such a course enriches a developer’s ability to create sophisticated applications and fosters a deeper understanding of Java’s core concepts.

Online Java Learning Resources

Leaving behind physical classes and routine schedules to take Java lessons, people are now moving towards seeking online classes to learn the Java programming language from the comfort of their houses. While the pandemic led people to follow a hybrid approach, people are still conflicted to follow whether offline is better or online Java courses. Here are the reasons why you must learn Java using online resources.

• Extensive free resources: Being a widely explored and mature programming language, people have practiced and availed numerous learning opportunities for aspiring programmers to get started with Java. Free resources are available on the web for Java learners to take help from and simplify their Java learning curve. Java free online courses and added certification benefits are some of them. People who wish to enter the field and do not know how to can avail of the free courses and get an understanding of the field, similarly, the professionals who are already in the industry can also avail of the opportunity to learn java free online courses.
  
• Great community support: Frequent application and real-world usage have led people to consistently practice the language and use web services to consult with other programmers. Consistent discussions years after years have created an archive-like environment for Java resources, which new programmers can utilize to find help or simply improve.
• Certification courses: Java free online courses are extensively available on the web to prepare learners for the dynamic programming environment. Education platforms like upGrad help aspiring programmers learn Java online free to strengthen their skillset. To learn Java online free of cost, you just have to visit the right place and find a reliable course structure to help upgrade your Java knowledge. You need to have the willingness to grasp the concepts and have a go-getter attitude to learn the free java course. The certification courses give you the advantage of boosting confidence. Along with that it also sends the potential employer a signal that you are a person who seeks to constantly improve which would show in the quality of work you would produce.
  
• Job opportunities: As online classes and educational platforms help you learn Java free of charge, they also extend job opportunities to utilize the knowledge at the right place. After learning Java free of cost, programmers can apply for jobs online, making it a convenient process compared to physical efforts. The professionals who learn java online for free are the ones who are seeking opportunities to grow, now that opportunity could be within the organisation or outside. The professionals who have a better in-depth understanding of the concepts get opportunities at leadership positions, with high salary, there are other external factors as well which contributes to its growth. The online learning opportunities give the job seekers a chance to manage their work and study time, so the professionals should invest their time to learn free java courses.

Learn Java Online Free: 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, you can check out our Java Courses on upgGrad Free Courses. 

upGrad Free Courses 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 top-notch content and learning resources 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. 

Our learners also read: Learn java free!

Below is the list of courses available in Java:

1. Javascript Basics from Scratch
2. Core Java Basics
3. Advanced Javascript for all

Let now look at the course content: 

1. Javascript Basics from Scratch

In this course you’ll set off on your path to becoming a JavaScript developer. You will learn about the basics of JavaScript language in this module, and slowly move on to understanding how to program in this language in general. You’ll also be learning about basic JavaScript concepts like variables, Data types, conditions, loops, arrays, objects, and functions.

In this course, you will get to learn the basics of Javascript, basics of literal variables, operators, strings, concatenation, ternary operators, conditionals and loops, arrays, functions, methods, and basics of javascript. Along with this, the module will also give you certain practice questions, where you could test your knowledge.

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2. Core Java Basics 

In this course you’ll be learning in depth about Variables, Data Types, loops, conditionals and functions and develop skills to solve problems using these.

In this course, you will get to learn the basics of variables and data types, command line, integrated development environment, casting, arrays, strings and characters, errors and debugging, conditionals, loops, functions, etc. In this course as well you will get practice questions to get your hands on, where you could test the knowledge of your understanding.

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3. Advanced Javascript for All

In this course you’ll be learning the intermediate and advanced javascript concepts. You’ll get insights on function prototypes, scopes, classes, templates, modules import and export, callbacks, and async. Since this is an advanced course, we recommend that you complete the Basic JavaScript course before starting this one.

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! Learn Java free and start your journey today. 

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How to Start

To join our Java courses for free, follow these simple steps:

• Head to upGrad Free Courses page
• Choose the course you want to join
• Register

All the courses present on our upGrad Free Courses 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.

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 Executive PG Program 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.

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