Java Programming: Working with Arrays, Lists, and Structured Data — PickAClass
4.5 (2) ⏱ 2h 30m 📚 25 lessons

Java Programming: Working with Arrays, Lists, and Structured Data

Build robust applications by learning how to store, process, and secure data using modern object-oriented principles and structured data types.

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About this course

Software development is about more than just syntax; it is about how you organize and manage information to solve complex problems. This course takes you beyond basic variables, teaching you how to use arrays and lists to handle large datasets and build functional logic like encryption systems. You will transform your coding ability by moving from simple scripts to structured programs that can interact with the real world through file systems and algorithmic logic. What you'll learn: - Understand foundational data structures including arrays and ArrayLists for efficient storage. - Read and write data using modern file I/O operations to interact with external documents. - Apply object-oriented principles to create reusable and scalable code structures. - Implement encryption and decryption logic to understand data security fundamentals. - Practice modern Java conventions including generics and basic stream processing for cleaner code. - Solve complex programming challenges by breaking them down into structured data problems. The material starts with essential terminology and basic data organization before moving into practical file handling and algorithmic logic. You will progress through written explanations and code-based exercises designed to reinforce every concept. This course is designed for beginners who have a basic grasp of Java syntax and want to advance their ability to build structured, data-driven applications. No advanced prerequisites are required. Begin your path toward sophisticated Java development.

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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PickAClass
Skills profile · verifiable
Document
Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Java Programming: Working with Arrays, Lists, and Structured Data
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
P
PickAClass — Name Surname
Java Programming: Working with Arrays, Lists, and Structured Data
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.

Reviews (2)

Giorgos Antoniou GR
★ 5 · July 16, 2026

This course exceeded my expectations! The examples were super relevant and helped solidify the concepts. Highly enjoyable.

Olivier van der Berg NL Verified learner
★ 4 · May 31, 2026

Brilliant course design. The way concepts build on each other is seamless. Very practical and well-explained.

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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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