Conclusion
Certified specialists in the field of Java development are highly valued by employers of large IT companies, so only those candidates who have proven their practical skills in using Java language by passing specialized Oracle exams can avoid serious competition and show their expertise. However, having the OCP Java SE 8 Programmer certificate will not only set you apart from other applicants but allow you to qualify for a higher salary.
So now that you see the benefits and are ready to continue on the path to Oracle certification, enroll for the Oracle 1Z0-809 exam and start preparing diligently. You have all the possibilities in your hands, it is enough to cast aside doubts and start studying hard to get ahead of the challenging job market.
What is the duration of the 1Z0-809 Exam
- Number of Questions: 85
- Passing Score: 65%
- Length of Examination: 150 minutes
- Format: Multiple choices, multiple answers
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Oracle 1z1-809 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Generics and Collections | 15% | - Sort and search collections - Use generic classes, interfaces, and methods - Analyze type safety and type erasure - Use Collections Framework: List, Set, Map, Queue |
| Lambda Expressions and Functional Interfaces | 15% | - Use method references - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use primitive and binary variants of functional interfaces - Create and use lambda expressions |
| Advanced Java Class Design | 10% | - Use final keyword - Use enumerated types - Use abstract classes and methods - Create inner classes: static, local, nested, anonymous |
| Java I/O and NIO.2 | 8% | - Read/write with java.io API - Stream operations on files - Use Path, Files, FileSystem API |
| JDBC | 5% | - Execute queries and updates - Process resultsets - Connect to database |
| Java SE 8 Date/Time API | 7% | - Work with Period, Duration, time zones - Format and parse dates/times - Use LocalDate, LocalTime, LocalDateTime, Instant |
| Localization | 5% | - Format numbers, dates, messages - Work with resource bundles - Use Locale class |
| Java Stream API | 15% | - Describe Stream interface and pipeline - Filter, map, and process streams - Work with Optional class - Use terminal operations: collect, reduce, count |
| Exceptions and Assertions | 8% | - Create custom exceptions - Use try-with-resources - Use try-catch, multi-catch, finally - Use assertions |
| Concurrency | 12% | - Use java.util.concurrent components - Use Executors, Callable, Future - Create threads: Thread class, Runnable, ExecutorService - Control thread lifecycle and synchronization |
| Java Class Design | 15% | - Implement inheritance including visibility modifiers and composition - Implement encapsulation - Override hashCode, equals, and toString methods - Create singleton and immutable classes - Use static keyword in blocks, variables, methods, classes - Implement polymorphism |
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