Data Structures in Java: Stacks and Queues — PickAClass
⏱ 2h 30m 📚 25 lessons

Data Structures in Java: Stacks and Queues

Understand and implement LIFO and FIFO principles to write more efficient Java code.

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About this course

Are you looking to improve the way your Java programs manage data? Understanding fundamental data structures is key to writing optimized and scalable code. This course provides a solid foundation in essential data structures, focusing on stacks and queues. You will learn how to apply the principles of Last-In, First-Out (LIFO) and First-In, First-Out (FIFO) to solve common programming challenges and enhance your application's performance. What you'll learn: * Understand the core concepts of stacks and how they operate using LIFO principles. * Learn to implement stacks in Java using arrays and linked lists. * Grasp the fundamentals of queues and their FIFO behavior. * Practice implementing queues in Java, covering both array-based and linked implementations. * Explore practical use cases for stacks and queues in everyday programming tasks. * Discover how to choose the right data structure for specific problem-solving scenarios. The course begins with fundamental definitions and progresses through practical implementation details, providing a clear path to mastering these essential structures. This course is designed for beginners with no prior experience in data structures. Basic familiarity with Java programming is recommended. Start building more efficient Java applications today.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
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  • ♾️ Lifetime access
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  • 📱 Phone or computer
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  • 💸 14-day refund
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  • Short & focused
    2h 30m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Data Structures in Java: Stacks and Queues
Skills demonstrated
Behavioral pattern analysis
Foundational
1.2 hrs
Decision-architecture frameworks
Proficient
1.4 hrs
A/B test design
Proficient
1.7 hrs
Behavioral copywriting
Advanced
1.9 hrs
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PickAClass — Name Surname
Data Structures in Java: Stacks and Queues
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
Verify this credential
pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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