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Last Updated: Oct 09, 2026
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A Oracle certificate can change the direction of a career, and the 1z1-809 exam is the step that makes it real. Exam4Docs supports that step with 209 practice questions carrying verified answers, all-day customer service, and thoughtful software details like hideable answers and note-taking space.
Oracle 1z1-809 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Java Stream API | 15% | - Filter, map, and process streams - Describe Stream interface and pipeline - Work with Optional class - Use terminal operations: collect, reduce, count |
| Lambda Expressions and Functional Interfaces | 15% | - Use primitive and binary variants of functional interfaces - Create and use lambda expressions - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use method references |
| Concurrency | 12% | - Use Executors, Callable, Future - Control thread lifecycle and synchronization - Create threads: Thread class, Runnable, ExecutorService - Use java.util.concurrent components |
| Localization | 5% | - Use Locale class - Format numbers, dates, messages - Work with resource bundles |
| JDBC | 5% | - Execute queries and updates - Process resultsets - Connect to database |
| Java I/O and NIO.2 | 8% | - Use Path, Files, FileSystem API - Read/write with java.io API - Stream operations on files |
| Exceptions and Assertions | 8% | - Use try-catch, multi-catch, finally - Use assertions - Use try-with-resources - Create custom exceptions |
| Java Class Design | 15% | - Create singleton and immutable classes - Implement encapsulation - Implement inheritance including visibility modifiers and composition - Use static keyword in blocks, variables, methods, classes - Implement polymorphism - Override hashCode, equals, and toString methods |
| Java SE 8 Date/Time API | 7% | - Work with Period, Duration, time zones - Use LocalDate, LocalTime, LocalDateTime, Instant - Format and parse dates/times |
| Generics and Collections | 15% | - Sort and search collections - Analyze type safety and type erasure - Use Collections Framework: List, Set, Map, Queue - Use generic classes, interfaces, and methods |
| Advanced Java Class Design | 10% | - Use final keyword - Use enumerated types - Create inner classes: static, local, nested, anonymous - Use abstract classes and methods |
1z1-809 Exam Questions: Frequently Asked Questions
Oracle points candidates toward these official training resources for the Oracle Java SE 8 Programmer II exam:
Coursework builds knowledge, but practice builds confidence — the 209 practice questions from Exam4Docs are the natural next step once the training material is behind you.
The 1z1-809 exam is an official Oracle certification exam built around the Oracle Java SE 8 Programmer II syllabus detailed above. It counts toward these credential paths: Oracle Certified Associate, Java SE 8 Programmer. Passing it demonstrates verified, job-relevant skills — one reason Oracle credentials remain widely respected in 2026. Exam4Docs helps you prepare with 209 practice questions available in PDF, Desktop Test Engine, and Online Test Engine formats.
According to the official outline, the Oracle Java SE 8 Programmer II exam is structured around 11 content domains. The leading three are Java Stream API (15%), Localization (5%), and Advanced Java Class Design (10%). The complete list appears in the topics section above, and Exam4Docs's 209 practice questions span every domain in it.
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The Oracle Java SE 8 Programmer II exam contains 68 with a time limit of 120 minutes. Budgeting that time is a skill in itself — the timed mock mode in the Exam4Docs Desktop Test Engine lets you rehearse the pace until it feels routine.
Must pass 1Z0-808 (Java SE 8 Programmer I) to earn the certification Eligibility rules can be updated, so double-check them on the official Oracle exam page before you register.
Three things candidates mention most: coverage, flexibility, and service. You receive 209 practice questions for the Oracle Java SE 8 Programmer II exam in three formats — a printable expert-prepared PDF, a Windows Desktop Test Engine with two practice modes and offline use, and an Online Test Engine for any browser on Windows, Mac, Android, or iOS with test history and performance review. Install on unlimited computers, try the free demo first, get free updates for 365 days, and renew afterward at 50% off. Small touches matter too: hide the answers while you practice, reveal them when you check your work, and keep notes right where you study.
Oracle Java SE 8 Programmer II Sample Questions:
Which statement is true about java.util.stream.Stream?
- A. A parallel stream is always faster than an equivalent sequential stream.
- B. A stream cannot be consumed more than once.
- C. Streams are intended to modify the source data.
- D. The execution mode of streams can be changed during processing.
Correct Answer: D 🗳️
Given the code fragment:
What is the result?
- A. A compilation error occurs at line n2.
- B. Checking...
- C. Checking...Checking...
- D. A compilation error occurs at line n1.
Correct Answer: D 🗳️
Given the code fragment:
public static void main (String[] args) throws IOException {
BufferedReader brCopy = null;
try (BufferedReader br = new BufferedReader (new FileReader("employee.txt"))) { // line n1 br.lines().forEach(c -> System.out.println(c)); brCopy = br;//line n2
}
brCopy.ready(); //line n3;
}
Assume that the ready method of the BufferedReader, when called on a closed BufferedReader, throws an exception, and employee.txt is accessible and contains valid text.
What is the result?
- A. A compilation error occurs at line n2.
- B. A compilation error occurs at line n3.
- C. The code prints the content of the employee.txt file and throws an exception at line n3.
- D. A compilation error occurs at line n1.
Correct Answer: C 🗳️
Given:
public class Emp {
String fName;
String lName;
public Emp (String fn, String ln) {
fName = fn;
lName = ln;
}
public String getfName() { return fName; }
public String getlName() { return lName; }
}
and the code fragment:
List<Emp> emp = Arrays.asList (
new Emp ("John", "Smith"),
new Emp ("Peter", "Sam"),
new Emp ("Thomas", "Wale"));
emp.stream()
//line n1
.collect(Collectors.toList());
Which code fragment, when inserted at line n1, sorts the employees list in descending order of fName and then ascending order of lName?
- A. .sorted (Comparator.comparing(Emp::getfName).thenComparing(Emp::getlName))
- B. .map(Emp::getfName).sorted(Comparator.reserveOrder())
- C. .map(Emp::getfName).sorted(Comparator.reserveOrder().map(Emp::getlName).reserved
- D. .sorted (Comparator.comparing(Emp::getfName).reserved().thenComparing(Emp::getlName))
Correct Answer: A 🗳️
Given the code fragment:
What is the result?
- A. 3 : 3 : 4
- B. 6 : 5 : 6
- C. 5 : 3 : 6
- D. 4 : 4 : 4
Correct Answer: D 🗳️
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