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1Z0-819 Exam Questions & Answers
Java SE 11 Developer • Oracle
296 Questions
Updated Sep 2026
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Sample 1Z0-819 Questions
Practice with real exam-style questions, each with the verified correct answer and explanation.
Q1
MultipleChoice
Given:
What is the type of the local variable x?
Correct Answer: D
Q2
MultipleChoice
Given the code fragment:
You want to examine whether path is a directory.
Which code inserted on line 1 will accomplish this?
Correct Answer: D
Q3
MultipleChoice
Given:
executed with this command:
java Main one two three
What is the result?
Correct Answer: D
Q4
MultipleChoice
Which two statements set the default locale used for formatting numbers, currency, and percentages? (Choose two.)
Correct Answer: B, D
Q5
MultipleChoice
Given:
Which two lines of code when inserted in line 1 correctly modifies instance variables? (Choose two.)
Correct Answer: B, E
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Unlock All 1Z0-819 QuestionsFrequently Asked Questions
The 1Z0-819 is Oracle's Java SE 11 Developer certification exam that validates your ability to write Java applications using Java SE 11 features. It covers object-oriented programming, lambda expressions, streams, modules, and other core Java concepts required for professional Java development.
The exam covers Java fundamentals, object-oriented programming, exception handling, working with arrays and collections, lambda expressions, functional interfaces, streams API, date/time API, module system, I/O operations, and concurrency. It also includes questions on string manipulation, type casting, and variable scope.
The 1Z0-819 exam typically contains 50 questions that must be completed within 90 minutes. The passing score is usually around 68%, though Oracle does not publicly disclose the exact cut score.
There are no formal prerequisites for the 1Z0-819 exam, though Oracle recommends having practical Java programming experience and knowledge of Java SE 11 features. It is advisable to have completed an introductory Java course or have equivalent hands-on development experience before attempting this exam.
The exam typically costs around $245 USD, though pricing may vary by region and can change. You can take the exam at Pearson VUE testing centers or online through Pearson OnVUE's remote proctoring service.