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Free Collections in Java Course

Name: Collections in Java
Rating: 4.42 (489 reviews)

Collections in Java

4.42 Beginner level 3.75 learning hrs 6K+ Learners

This free java collections course helps you learn ArrayList, LinkedList, HashMap, HashSet, iteration, sorting, use cases, collection choices so you can choose the right data structure instead of memorizing Java APIs randomly.

Instructor:

Ms. Sampriti Chatterjee

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Skills you will gain

Collections in Java

Key Highlights

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About this course

Learning java collections is easier when each idea is tied to a real decision, task, or workflow. This free course is built for beginners who want practical context before moving into deeper tools, projects, or role-specific training. You work through ArrayList, LinkedList, HashMap, HashSet, iteration, sorting, use cases, collection choices, so the topic feels useful rather than abstract. The course helps you choose the right data structure instead of memorizing Java APIs randomly while building vocabulary, confidence, and a clearer sense of what to practice next.

By the end, you should be able to explain the core ideas in your own words, recognize where they apply, and choose a sensible next step for practice. The course is useful for students, career switchers, and working learners who need a self-paced foundation. It focuses on learner questions: what the topic means, where it is used, what skills it builds, and how it connects to future learning or work.

Stand out with an industry-recognized certificate

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Course outline

Introduction to Java: Object-Oriented Programming (OOP) and Platform Independence

Define the core principles of Java. Understand its architecture as a high-level, Object-Oriented Programming (OOP) language and explore the "Write Once, Run Anywhere" (WORA) capability powered by the Java Virtual Machine (JVM) for cross-platform compatibility.

Vector

Linked List

A linked list is a linear type of data structure that comes in handy while solving complex problems. This module gives a brief on the linked list along with discussing its advantages, disadvantages, and applications. You also have a demonstration on a linked list with the help of a code example.

Agenda

Case Study

This module introduces you to the case study, where you will get an opportunity to apply your theoretical knowledge of Measures of Central Tendency to a practical scenario.

Collection Framework in Java

Implementation on Eclipse

Java Queue

Java Set

What is Map?

Get access to the complete curriculum once you enroll in the course

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Collections in Java

4.42

3.75 Hours

Beginner

6K+ learners enrolled so far

Get free course content

Master in-demand skills & tools

Test your skills with quizzes

Trusted by 10 Million+ Learners globally

4.6

4.89

4.94

4.7

Learner reviews of the Free Courses

4.42

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67%

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23%

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KAIRAVI MANAVADARIYA

5.0

★★★★ ★

India

“Java Collections is a framework that provides a set of classes and interfaces for storing and manipulating groups of objects.”

Collection: The root interface in the collection hierarchy. List: An ordered collection (also known as a sequence), allows duplicate elements (e.g., ArrayList, LinkedList). Set: A collection that does not allow duplicate elements (e.g., HashSet, LinkedHashSet, TreeSet). Map: A collection of key-value pairs, where each key is unique (e.g., HashMap, LinkedHashMap, TreeMap). Queue: A collection designed for holding elements prior to processing, following FIFO order (e.g., LinkedList, PriorityQueue).

HARDI JOSHI

5.0

★★★★ ★

India

“Mastering Java Collections: A Key to Efficient Data Management”

I enjoyed learning how the Java Collection framework simplifies data management. It was fascinating to see how different interfaces like List, Set, and Map offer specific data manipulation capabilities. The seamless way to switch between data structures—like using ArrayList for fast iteration or HashSet for unique elements—was a highlight. Understanding how to efficiently organize and retrieve data in Java through the Collections framework was a valuable experience.

shivani

5.0

★★★★ ★

India

“The key takeaway from my learning experience with the Java Collection Framework is its versatility and power in managing data.”

I gained a deeper understanding of how to choose the right collection type (e.g., ArrayList, HashSet, PriorityQueue) based on performance needs, such as fast access, memory efficiency, or order preservation. The framework’s easy-to-use APIs and built-in functionality like sorting, searching, and iteration significantly improved my coding efficiency. The ability to work seamlessly with Generics and Streams also enhanced my experience, making Java collections not only easier to use but also more expressive and efficient.

SHIV MODI

5.0

★★★★ ★

India

“Understanding Collections in Java: An Overview”

Java Collections Framework is a unified architecture for representing and manipulating collections. It provides a set of interfaces, implementations, and algorithms to handle groups of objects. Key interfaces include Collection, List, Set, and Map, each serving different purposes. For instance, List allows duplicate elements and maintains order, while Set ensures uniqueness. The framework also includes classes like ArrayList, HashSet, and HashMap, which offer various performance characteristics.

Avinda

4.0

★★★ ★ ☆

“Learning new things about Collections in Java and how to use them.”

Learning Java Collections enables you to efficiently store, manage, and manipulate data with a variety of powerful, pre-built data structures like lists, sets, and maps. Understanding collections improves your ability to write clean, optimized code for tasks such as sorting, searching, and data manipulation, saving development time and enhancing performance in real-world applications.

Nimesh Prajapati

5.0

★★★★ ★

India

“Comprehensive and Practical Collection Learning Experience”

The Java Collection Framework is a powerful and versatile tool that simplifies working with data structures and algorithms. Its rich API offers a variety of implementations like ArrayList, HashMap, and TreeSet, catering to different needs. The use of standardized interfaces, such as List, Set, and Map, promotes consistency and polymorphism, making it intuitive to use for developers. Generics enhance type safety, reducing runtime errors.

Kwisha Bhalala

5.0

★★★★ ★

India

“Understanding Java Collections Framework”

The practical examples helped me understand how to efficiently manage and manipulate data. The concept of generics also stood out to me, as it enhances type safety and reduces runtime errors. Overall, the hands-on exercises made the learning process engaging and solidified my understanding of how to leverage collections in real-world applications.

TEJAL GOHIL

5.0

★★★★ ★

India

“Understanding Java Collections Framework-Learning how different collections like List, Set, and Map are used to handle data efficiently”

I enjoyed learning about the versatility of the Java Collections Framework, particularly how interfaces like List, Set, and Map are implemented by different classes, providing flexibility in managing data structures. Exploring how collections can be manipulated and iterated over to solve practical problems was very insightful.

Fenil Sheladiya

5.0

★★★★ ★

India

“Deepened understanding of data structures through practical examples”

I appreciated how the course provided hands-on coding exercises that reinforced theoretical concepts. The clear explanations of data structures like linked lists and queues made it easier to grasp their implementations and use cases. I particularly enjoyed the problem-solving sessions that challenged me to apply what I learned, enhancing my confidence and skills in programming.

Hardi Naik

4.0

★★★ ★ ☆

India

“It was a good experience. nice content ”

The Collection in Java course on Great Learning provided a comprehensive understanding of data structures like lists, sets, and maps. The practical examples and hands-on exercises enhanced my coding skills, making it easier to implement efficient data handling in Java applications. Highly recommended for aspiring developers

What our learners enjoyed the most

Skill & tools

61%

61% of learners found all the desired skills & tools

Our course instructor

Ms. Sampriti Chatterjee

IT & Software Expert

906.1K+ Learners

74 Courses

Sampriti has been working in the field of data science and has expertise in languages such as Python, SQL, and Java. She also has expertise in the field of deep learning and has worked with deep learning frameworks such as Keras and TensorFlow 2.0. She is been in the technical content side for the last few years.

Frequently Asked Questions

Will I receive a certificate upon completing this free course?

Yes, upon successful completion of the course and payment of the certificate fee, you will receive a completion certificate that you can add to your resume.

Is this course free?

Yes, you may enroll in the course and access the course content for free. However, if you wish to obtain a certificate upon completion, a non-refundable fee is applicable.

What will I learn in this free java collections course?

You learn ArrayList, LinkedList, HashMap, HashSet, iteration, sorting, use cases, collection choices, with beginner-friendly explanations that help you understand where the topic is used and how to keep learning after the course.

Is this java collections course suitable for beginners?

Yes. The course starts with foundations and explains the topic in a structured way, so learners can build context before moving into advanced tools or projects.

What should I learn next after java collections?

Next, study related tools, hands-on projects, advanced examples, and role-specific applications so the foundation from this course becomes usable.

Will I get a certificate after completing this Collections in Java free course?

Yes, you will get a certificate of completion for Collections in Java after completing all the modules and cracking the assessment. The assessment tests your knowledge of the subject and badges your skills.

How much does this Collections in Java course cost?

It is an entirely free course from Great Learning Academy. Anyone interested in learning the basics of Collections in Java can get started with this course.

Is there any limit on how many times I can take this free course?

Once you enroll in the Collections in Java course, you have lifetime access to it. So, you can log in anytime and learn it for free online.

Can I sign up for multiple courses from Great Learning Academy at the same time?

Yes, you can enroll in as many courses as you want from Great Learning Academy. There is no limit to the number of courses you can enroll in at once, but since the courses offered by Great Learning Academy are free, we suggest you learn one by one to get the best out of the subject.

Why choose Great Learning Academy for this free Collections in Java course?

Great Learning Academy provides this Collections in Java course for free online. The course is self-paced and helps you understand various topics that fall under the subject with solved problems and demonstrated examples. The course is carefully designed, keeping in mind to cater to both beginners and professionals, and is delivered by subject experts. Great Learning is a global ed-tech platform dedicated to developing competent professionals. Great Learning Academy is an initiative by Great Learning that offers in-demand free online courses to help people advance in their jobs. More than 5 million learners from 140 countries have benefited from Great Learning Academy's free online courses with certificates. It is a one-stop place for all of a learner's goals.

What are the steps to enroll in this Collections in Java course?

Enrolling in any of the Great Learning Academy’s courses is just one step process. Sign-up for the course, you are interested in learning through your E-mail ID and start learning them for free online.

Will I have lifetime access to this free Collections in Java course?

Yes, once you enroll in the course, you will have lifetime access, where you can log in and learn whenever you want to.

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