Java SE 17 Developer (Oracle Certified Professional: Java SE 17 Developer (1Z0-829)) — Free Online Mock Test

Java SE 17 · ~50 Q in 90m. Java language, OOP, generics & collections, streams & lambdas, modules, concurrency and exceptions. · Official language: English.

Advanced Global Tech & IT Certifications 55 questions 120 min 50 distinct variants
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Java SE 17 Developer exam at a glance

55
Questions
120
Minutes total
1
Section
50
Variants

Java SE 17 Developer key facts & eligibility

Java SE 17 Developer at a glance — verified exam facts
Conducting bodyOracle (delivered via Pearson VUE)
Official websiteeducation.oracle.com ↗
ModeOracle Certified Professional: Java SE 17 Developer (exam 1Z0-829) — a professional-level certification validating Java development skills using the Java SE 17 long-term-support release.
FrequencyOffered year-round by appointment (via Pearson VUE).
Scoring & markingThe exam has 50 multiple-choice/multiple-select questions in 90 minutes, and the passing score is 68%. It covers object-oriented design, generics and collections, streams and lambdas, concurrency, JDBC, localization, the module system (JPMS) and exception handling.
Score validityThe certification does not expire.
LanguageEnglish.

Who is eligible for Java SE 17 Developer?

No formal prerequisite to take the exam, though professional-level Java knowledge is assumed.

Last verified July 2026 against Oracle — Java SE 17 Developer (1Z0-829). Always confirm current details on the official website before you register.

Java SE 17 Developer section breakdown

The Java SE 17 Developer mock test on Wrexa Edge replicates the real exam's section structure — same names, same question count per section, same time limits. No inter-section breaks — the timer runs continuously.

Java SE 17 Developer scoring & marking scheme

+1
Per correct answer
0
Per wrong answer
0
Per blank / skipped
100–1000
Scaled score range

Strategy: Java SE 17 Developer has no negative marking. Attempt every question — blank answers cost you potential marks but cannot pull your score down.

Scale: Java SE 17 Developer (pass 700/1000).

How Java SE 17 Developer is conducted

Java SE 17 Developer time strategy

With 55 questions in 120 minutes, you have about 131 seconds per question on average. Successful candidates aim for the following pacing on each section:

Wrexa Edge's analytics show your actual time-per-question after every mock so you can spot which sections you're losing time on.

Java SE 17 Developer topics covered

Across the 50 Wrexa Edge variants of Java SE 17 Developer, the following topics appear most often (sample distribution from one variant):

Java SE 17 Developer (55 Q)

Java SE 17 Developer difficulty calibration

Advanced tier. Advanced-level: high-stakes exam with rigorous content depth. Expect 4-8 months of structured prep.

Java SE 17 · ~50 Q in 90m. Java language, OOP, generics & collections, streams & lambdas, modules, concurrency and exceptions. · Official language: English.

Verified content — Wrexa Edge's Java SE 17 Developer bank has been deeply curated with real exam-aligned content (estimated 100% syllabus coverage).

How Wrexa Edge prepares you for Java SE 17 Developer

Expert take: what Java SE 17 Developer really tests

Oracle Certified Professional: Java SE 17 Developer (exam 1Z0-829) is a professional-level certification for Java development using the Java SE 17 long-term-support release. It has 50 multiple-choice/multiple-select questions in 90 minutes with a 68% passing score, covering object-oriented design, generics and collections, streams and lambdas, concurrency, JDBC, localization, the module system (JPMS) and exception handling. The certification does not expire.

Preparation tips

  • Write and run code for streams, lambdas and concurrency — the tricky areas.
  • Master the module system (JPMS) and generics, common exam pitfalls.
  • Use full-length practice exams to build speed for 50 questions in 90 minutes.

⚠️ Common mistakes to avoid

  • Relying on older Java 8 habits instead of Java SE 17 features.
  • Skipping practice on subtle compile-vs-runtime code questions.

Java SE 17 Developer study plan

A phase-by-phase roadmap from your first concept to test-ready. Stretch or compress each phase to fit the time you have before your attempt.

1 Understand the exam Week 1
  • 50 questions in 90 minutes, 68% to pass
  • Java SE 17 LTS features
  • Professional-level Java knowledge assumed
2 Master the topics Weeks 2-8
  • OO design, generics and collections
  • Streams, lambdas and concurrency
  • JDBC, localization, modules (JPMS) and exceptions
3 Practice tests Weeks 9-10
  • Full 1Z0-829 practice exams
  • Code the tricky stream and concurrency scenarios
  • Aim above the 68% passing score

Where Java SE 17 Developer can take you

A strong Java SE 17 Developer result opens up these careers and higher-study paths:

Best books & official prep for Java SE 17 Developer

Official practice: Prepare from the official Oracle exam page and study guides; practise coding across the Java SE 17 topics and aim for the 68% passing score.

Previous-year papers: Oracle provides exam topics and sample questions; third-party practice tests are widely used.

Frequently asked questions

What is the Java SE 17 Developer exam pattern?
Oracle Certified Professional: Java SE 17 Developer (1Z0-829) contains 55 questions across 1 section: Java SE 17 Developer (55 Q). Total duration is 120 minutes (about 131 seconds per question).
Does Java SE 17 Developer have negative marking?
No — Java SE 17 Developer has no negative marking. Each correct answer is worth 1 mark, so attempt every question.
How is Java SE 17 Developer scored?
Scaled score range: 100 to 1000. Java SE 17 Developer (pass 700/1000).
How can I practise Java SE 17 Developer online for free?
Wrexa Edge gives you 10 free full-length Java SE 17 Developer mock tests — with instant scoring, detailed explanations and analytics — plus 40 more with Pro. Start practising in under a minute, no card required.
What is the difficulty level of Java SE 17 Developer?
Java SE 17 Developer is rated Advanced difficulty on Wrexa Edge. Advanced-level: high-stakes exam with rigorous content depth. Expect 4-8 months of structured prep. Java SE 17 · ~50 Q in 90m. Java language, OOP, generics & collections, streams & lambdas, modules, concurrency and exceptions. · Official language: English.
How long is the Java SE 17 Developer exam?
Java SE 17 Developer runs for 120 minutes total. On Wrexa Edge the timer is enforced exactly as on the real exam — including no inter-section breaks.
What topics are covered in Java SE 17 Developer?
Java SE 17 Developer is split into: Java SE 17 Developer (55 Q). Each section is timed and weighted separately. Java SE 17 · ~50 Q in 90m. Java language, OOP, generics & collections, streams & lambdas, modules, concurrency and exceptions. · Official language: English.
What tools or aids are allowed during Java SE 17 Developer?
No special tools are required. Note: real exam is proctored — Wrexa Edge mirrors this with a webcam-based proctoring flow you can enable.
Is the Java SE 17 Developer test adaptive?
No — Java SE 17 Developer is a fixed-form (linear) test. Every candidate sees the same number of questions per section.
How many Java SE 17 Developer mock tests does Wrexa Edge offer?
Wrexa Edge generates 50 distinct Java SE 17 Developer variants — each with different question content, not just shuffled options — the first 10 free for everyone and 40 more with Pro. That's 2750 unique practice questions in the real test-day interface.
Is there a free Java SE 17 Developer test series 2026?
Yes. The Wrexa Edge Java SE 17 Developer test series for 2026 gives you 10 free full-length mock tests (50 in total) plus subject-wise and topic-wise tests — instant scoring and detailed analysis, no card required.
Are Java SE 17 Developer previous year question–style papers included?
Every Java SE 17 Developer mock is modelled on the official exam pattern and the style of previous years' papers — the same 55-question structure, sections and marking — so your practice mirrors the real paper you'll sit.
Which is the best free Java SE 17 Developer mock test online?
Wrexa Edge's Java SE 17 Developer mock test replicates the real exam interface, timing and marking scheme, with instant score, section-wise analysis and 50 fresh variants — a strong free choice for 2026 preparation.
Can I take the Java SE 17 Developer mock test on mobile?
Yes. Java SE 17 Developer mock tests run in any browser on mobile, tablet or desktop — no app or download needed. Start on your phone and your progress and analytics sync when you sign in.
What is the Java SE 17 Developer syllabus?
The Java SE 17 Developer syllabus maps to its 1 section: Java SE 17 Developer (55 Q). Wrexa Edge's mock tests cover the complete syllabus topic by topic — see the topics-covered breakdown above — so you practise every area at real exam difficulty.
What is the eligibility for Java SE 17 Developer?
Eligibility for Java SE 17 Developer — age, qualification and number of attempts — is set by the official conducting body and can change each cycle, so always confirm the current official notification before applying. Wrexa Edge focuses on realistic Java SE 17 Developer practice: 10 free full-length mocks in the exact exam pattern, ready whenever you are.
When is the Java SE 17 Developer exam and how should I prepare?
Official Java SE 17 Developer exam dates are announced by the conducting body for each cycle — check the latest notification for the current schedule. To be ready, follow a phased study plan and take full-length timed mocks; Wrexa Edge gives you 10 free Java SE 17 Developer mocks with instant scoring so you can track your readiness week by week.

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