6 Best Collections Certification Courses
We compared 6 Collections courses currently listed on Udemy and Coursera, priced from $19.99 to $49.00. They are ordered by our CourseAsk score, which is built from how thoroughly each course describes what it teaches, whether it comes from a named institution, and how it compares on price — not from star ratings, which our course data does not include.
- Courses compared
- 6
- Price range
- $19.99 – $49.00
- Providers
- Udemy, Coursera
- Last updated
- 30 Aug 2026
How these 6 courses were chosen
Every course below is a real, currently listed course from Udemy, Coursera, matched to "collections" by our catalog and ordered by our CourseAsk score. Courses whose own title names the topic rank above those only tagged with it.
The grade on each entry scores how much the provider publishes about the course before you pay — the length and detail of the description, whether it lists learning outcomes and objectives — and whether a named university or institution stands behind it. A is fully documented and institution-backed; E is little more than a title and a price. Courses with almost nothing published are left ungraded rather than marked down, because an unknown course and a poor one are not the same thing.
There are no star ratings on this page — the course feeds we license do not include them, and we would rather leave a column out than fill it with a number we cannot stand behind. What we do have is price: these range from $19.99 to $49.00, as listed by the provider when we last updated the page.
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1
1Z0-829 Java SE 17 Developer exam preparation OCP 2025
Oracle Certified Professional (OCP) Java SE 17: Exam Topics CoveredThis practice test is designed to assess your knowledge across the core domains of the OCP Java SE 17 Developer exam. The covered objectives include:1. W...
$24.99listed price -
2
![Oracle Certified Professional: Java SE 11 Developer [Exams].](https://i.udemycdn.com/course/480x270/3923618_a191.jpg)
Oracle Certified Professional: Java SE 11 Developer [Exams].
I want to welcome all of my students. I am so glad that you are here, and it is going to be a great! Happy start , i hope you learn new things – and of course, have some funYou may have heard that Oracle Certification ca...
$19.99listed price -
3
Oracle Certification : OCP SE17 Developper 1z0-829 part2
THE OCP EXAM TOPICS COVERED IN THIS PRACTICE TEST INCLUDE THE FOLLOWING:Handling date, time, text, numeric and boolean values:Use primitives and wrapper classes, including the Math API, parentheses, type promotion, and c...
$24.99listed price -
4
Oracle Certification : OCP SE21 Developper 1z0-830 part2
THE OCP EXAM TOPICS COVERED IN THIS PRACTICE TEST INCLUDE THE FOLLOWING:Utilizing Java Object-Oriented ApproachDeclare and instantiate Java objects, including nested classes, and explain their lifecycle (creation, reassi...
$24.99listed price -
5
Oracle 1Z0-149 Exam Prep: PL/SQL Developer 19c Certified
Prepare thoroughly for the Oracle Database Programming with PL/SQL (1Z0-149) certification exam with this structured, exam-focused practice test course. The certification validates advanced expertise in developing databa...
$19.99listed price -
6
Java SE 21 OOP and Functional Techniques
Offered by John Wiley & Sons
This course will deepen your expertise in Java SE 21, focusing on object-oriented design, advanced class features, and functional programming concepts. You will gain skills in designing robust applications using modern J...
$49.00listed price
Best Collections Certification Courses compared
| # | Course | Provider | Offered by | Price | |
|---|---|---|---|---|---|
| 1 | 1Z0-829 Java SE 17 Developer exam preparation OCP 2025 | Udemy | — | $24.99 | View → |
| 2 | Oracle Certified Professional: Java SE 11 Developer [Exams]. | Udemy | — | $19.99 | View → |
| 3 | Oracle Certification : OCP SE17 Developper 1z0-829 part2 | Udemy | — | $24.99 | View → |
| 4 | Oracle Certification : OCP SE21 Developper 1z0-830 part2 | Udemy | — | $24.99 | View → |
| 5 | Oracle 1Z0-149 Exam Prep: PL/SQL Developer 19c Certified | Udemy | — | $19.99 | View → |
| 6 | Java SE 21 OOP and Functional Techniques | Coursera | John Wiley & Sons | $49.00 | View → |
Prices shown are the provider's listed price when we last updated this page. Confirm on their site before enrolling.
What the prices here tell you
The 6 priced courses on this page run from $19.99 to $49.00, with the middle of the range around $24.99 — a spread of $29.01. The options are closely priced, so cost is unlikely to be your deciding factor. A higher price on this page usually reflects who is behind the course rather than how much material it contains, so it is worth opening two or three at different price points and comparing their syllabus before deciding.
Who is behind these courses
These courses come from Udemy and Coursera. The platforms differ in how they sell: some charge once per course, others expect a subscription, and the listed price is not always what you pay at checkout after a promotion.
Courses versus exam preparation
6 of the entries here are built around a certification exam rather than teaching Collections from scratch. They are the right choice only if you already know the material and want to pass a specific exam; if you are starting out, pick one of the taught courses first and come back to exam preparation afterwards.
Before you enrol
Open the provider’s own page and check three things this comparison cannot tell you: when the course was last updated, what the syllabus actually covers in its later sections, and what recent learners say. Prices shown here are the provider’s listed price when we last rebuilt this page on 30 August 2026 — they change often, and a promotion can move them substantially. We earn a commission if you enrol through our links, which costs you nothing and never affects the order courses appear in.