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Free course template · Global

Java engineering onboarding: Object-oriented design, collections and common mistakes

A ready-made course, live deck and two surveys for new java developers. AhaSlides tracks progress, completion and scores for you. 45 minutes, 6 lessons. Last reviewed 21 October 2026; not legal advice.

By Brian

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Java engineering onboarding: try 3 questions

Three questions from this course. Pick an answer, then see why.

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Three pieces that work together

Learners prepare on their own, you answer questions live, and the surveys tell you what stuck. 7 fields to fill in with your own policy, contacts and locations; each one is highlighted inside the course.

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The Java engineering onboarding: Object-oriented design, collections and common mistakes course as a learner first sees it

Completion is tracked for you

Learners sign in to take the course, so every start, finish and score is recorded in AhaSlides. No spreadsheet to keep.

  • Who has finished

    See who has not started, who is in progress and who has completed the course.

  • Every score

    Each learner's answers to the quizzes and activities in the course.

  • What landed

    Survey results show what people took away, and the 30-day check-in shows whether they use it.

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6 lessons, about 45 minutes

What learners can do at the end of each lesson. Minutes are an estimate.

  • Lesson 1: A bug from a shared mutable list · 8 min

    Before you begin · The report · What went wrong

  • Lesson 2: Classes, objects and encapsulation · 8 min

    Terms · Public or private? · Check

  • Lesson 3: Inheritance and interfaces · 8 min

    Choosing · Redesign · Predict

  • Lesson 4: Collections and streams · 8 min

    Which collection? · The modify-while-looping error · Streams in one sentence

  • Lesson 5: Common Java mistakes and review checklist · 8 min

    Frequent slips · Raise it early · Check

  • Lesson 6: Framework basics and final assessment · 5 min

    What a framework gives you · Practice

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Often taught together

Courses teams often run alongside this one.

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Common questions

Yes. The course, the live deck and both surveys are free. Claiming the template into your AhaSlides account is free too.

Yes. The course is self-paced and online, and the live deck lets you add a live session in the room or online.

In the first weeks of a new Java developer's onboarding.

New Java developers, career changers and developers moving onto a Java codebase; run by engineering managers with L&D.

Record completion in your own LMS or record system, so you can show who finished the course and when.

Yes, everything. Change the wording, swap scenarios for ones from your workplace, add your logo, or remove parts that don't apply.

Your own details, each highlighted inside the course:
  • List of approved tools and versions
  • Link to the engineering standards or style guide
  • Where completion is recorded
  • Who to ask for help or to report a concern
  • Link to the self-paced course
Then edit anything else you like: wording, scenarios, your logo.
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Ready to run it?

Free. Copy the course, live deck and both surveys into your AhaSlides account in one click.

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