Exam Name: Java SE 11 Developer
Certification Provider: Oracle
Corresponding Certification: Oracle Java SE
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- Total Questions: 297
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- Total Questions: 297
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Whatever your background, the 1Z0-819 exam asks the same questions of everyone. Prep4away levels the preparation side: 297 practice questions with verified answers, easy to understand regardless of where you start, plus support reachable online.
Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Working with Java data types | 12% | - Declare and initialize variables - Call methods on objects - Manipulate data using the StringBuilder class and its methods - Differentiate between object reference variables and primitive variables - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Read or write to object fields - Create and manipulate strings |
| Topic 2: Working with Arrays and Collections | 8% | - Iterate through a collection - Sort elements in a collection - Filter a collection using lambda expressions - Create a list, set, map, or queue collection - Search for elements in a collection - Use generic types and diamond operator |
| Topic 3: Concurrency | 10% | - Use synchronized blocks and the volatile keyword - Identify potential threading problems - Create worker threads using Runnable and Thread objects - Use ExecutorService to concurrently execute tasks - Use parallel streams to improve performance - Use java.util.concurrent atomic classes and ForkJoinPool |
| Topic 4: Working with Streams and Lambda expressions | 13% | - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use the Stream API to perform terminal operations - Filter a collection using lambda expressions - Describe the Stream interface and pipeline - Use method references with streams - Use functional interfaces with lambda expressions |
| Topic 5: Controlling Program Flow | 10% | - Use break and continue statements - Use Java control statements - Use if and if/else statements - Use for, while, and do/while loops - Use switch statements |
| Topic 6: Exception Handling and Localization | 10% | - Use standard exception classes - Use resource bundles and locale classes for internationalization - Create try-catch blocks and understand exception propagation - Create and throw custom exceptions - Use assertions - Describe the advantages of exception handling |
| Topic 7: Working with Java OOP | 15% | - Apply the static keyword to methods and fields - Use abstract classes and interfaces - Implement encapsulation - Implement inheritance - Create inner classes and use them within other classes - Apply the final keyword to classes, methods, and fields - Implement polymorphism |
| Topic 8: I/O (Fundamentals and NIO2) | 7% | - Use Stream API with files - Use NIO2 API to work with file systems and file attributes - Read and write console and file input/output using Java I/O system - Use Path interface to manipulate file paths |
| Topic 9: Database Applications with JDBC | 5% | - Connect to a database using JDBC - Describe the advantages of using a connection pool - Execute queries and process results - Use parameterized queries |
| Topic 10: Secure Coding in Java SE Application | 5% | - Prevent SQL injection and other attacks - Secure sensitive data - Validate user input - Prevent Denial of Service (DoS) attacks |
| Topic 11: Annotations | 5% | - Apply standard annotations to classes and methods - Create custom annotations - Describe the purpose of annotations |
| Topic 12: Java Platform Module System | 10% | - Declare module dependencies - Explain the default modules and class path - Explain the concept of module exports and requires - Use jdeps to determine dependencies - Migrate applications to use modules - Deploy and execute modules |
1Z0-819 Exam: Your Questions, Answered
Oracle recommends but does not require candidates to first obtain the Oracle Certified Professional: Java SE 11 Programmer I (1Z0-815) certification. However, 1Z0-819 can be taken directly without 1Z0-815. Since requirements change over time, confirm the latest on the official Oracle exam page before scheduling.
Oracle recommends these training resources for the Oracle Java SE 11 Developer exam:
Follow the training with steady self-testing — the 297 practice questions from Prep4away make that routine easy to maintain.
Prep4away issues a full refund if you take the Oracle Java SE 11 Developer exam within 60 days of purchase and do not pass. The policy does not apply if the exam is taken within 3 days of purchase, if the exam was never actually taken, or to free materials or expired orders, and the candidate name must match the payer name. Submit a scan of your enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Alternatively, exchange for two free exam products of equal value and keep your original update service. Orders arrive by email within 1 minute — contact support if nothing arrives within 2 hours.
The official Oracle Java SE 11 Developer outline defines 12 domains. The leading three are Working with Java data types (12%), Secure Coding in Java SE Application (5%), and Working with Arrays and Collections (8%). The full list is in the topics section above, and Prep4away's 297 practice questions cover each one.
The 1Z0-819 exam is a Oracle certification exam validating the Oracle Java SE 11 Developer syllabus shown above. It belongs to these credential paths: Oracle Certified Professional: Java SE 11 Developer. Candidates of different ages and backgrounds take it to advance their careers in 2026, and Prep4away prepares all of them with 297 practice questions in PDF, Desktop Test Engine, and Online Test Engine formats.
Three versions of the 297 practice questions for the Oracle Java SE 11 Developer exam, each with its own strengths: a printable, expert-prepared PDF with instant download and free demo; a Desktop Test Engine for Windows that simulates the real exam with two practice modes and works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. Choose whichever suits your taste — all are included, along with 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.
The Oracle Java SE 11 Developer exam requires 68% to pass, and registration costs $245 USD. Retaking costs the same fee again, so a readiness check with the Prep4away engines is a sensible investment before booking.
The Oracle Java SE 11 Developer exam contains 80 to complete within 90 minutes. Timed practice in the Prep4away Desktop Test Engine prepares you for exactly that rhythm.
Pearson VUE testing centers (online proctored exam also available) Register for the Oracle Java SE 11 Developer exam through these official channels:
Once booked, your Prep4away practice questions reach your inbox within 1 minute — the countdown to exam day can start at once.
Oracle Java SE 11 Developer Sample Questions:
Given:
What is the output?
A)
B)
C)
D)
- A. option B
- B. option C
- C. option A
- D. option D
Correct Answer: D 🗳️
Which method throws an exception for not-a-number and infinite input values?
- A.
- B.
- C.
- D.
Correct Answer: A 🗳️
How many Thing objects are eligible for garbage collection in line 1?
- A. 0
- B. 4
- C. 3
- D. 1
- E. 2
Correct Answer: D 🗳️
Given the code fragment:
What is the result?
- A.
- B.
- C.
- D.
Correct Answer: C 🗳️
Which two expressions create a valid Java Path instance? (Choose two.)
- A. Paths.get("foo")
- B. Path.get(new URI("file:///domains/oracle/test.txt"))
- C. new Path("foo")
- D. Paths.getPath("too")
- E. Paths.get(URL.create("file:///domains/oracle/test.txt"))
Correct Answer: A,E 🗳️
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