130 practice questions for Oracle Java SE 17 Developer (1Z0-829), with full explanations.
Every question comes with the correct answer, the reasoning behind it, and a short note on why each wrong option is wrong. Work through it once with the answers, then again with the questions-only copy under exam conditions.
- 130 questions mapped to the 1Z0-829 exam objectives
- Answers and explanations for every question, including the wrong options
- A questions-only PDF for timed practice runs
- Instant delivery by email the moment you check out
- Free monthly updates for as long as the exam is live
- Pass or your money back
A failed 1Z0-829 attempt costs US$245. This pack is US$39, paid once.
Try 10 questions free before you buy.
Last updated September 2026 · 130 questions
What makes the 1Z0-829 hard
The Java 17 OCP is a code-reading exam. Fifty questions, and most of them are “what does this print”, with snippets built around the exact behaviours working developers gloss over.
The traps are precise language rules: sealed classes and records, switch expressions and pattern matching, streams and collectors edge cases, generics bounds, module declarations, and the classic minefields of operator promotion, string immutability, and exactly when finally does not run. IDE-assisted developers fail it because the exam removes the IDE and keeps the ambiguity.
Java certification remains one of the most searched developer credentials, and 17 is the LTS version employers name.
About the exam
1Z0-829 certifies Java SE 17 development and awards the Oracle Certified Professional: Java SE 17 Developer credential, covering language fundamentals through advanced features including records, sealed classes, streams, concurrency and modules. Does not expire.
Exam topics
- Object-oriented Java: classes, records, sealed types, generics
- Control flow, switch expressions and pattern matching
- Streams, lambdas and collections
- Concurrency and the module system
- Exceptions, I/O, JDBC and localisation
50 questions, 90 minutes, passing score 68%, US$245 per attempt, at a Pearson VUE centre or online proctored, does not expire.
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