Exam Difficulty
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Which candidate knowledge the exam will verify
The 1z0-813 certification exam will verify that the successful candidate has important knowledge and skills necessary to Java SE 8 Programming include Language Enhancements, Concurrency, Localization, Java File I/O, Lambda, Java Collections, and Java Streams.
Oracle 1z1-813 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Interfaces and Lambda Expressions | 15% | - Functional interfaces and lambda expressions - Inheritance rules for default methods - Static and default methods in interfaces - Method references |
| Topic 2: Java Date/Time API | 15% | - Time zones and daylight saving adjustments - Period, Duration, and ChronoUnit - Formatting and parsing dates/times - LocalDate, LocalTime, LocalDateTime, Instant |
| Topic 3: Java File I/O (NIO.2) | 15% | - DirectoryStream and FileVisitor - PathMatcher and file attributes - Path and Files classes operations - WatchService for directory changes |
| Topic 4: Java Stream API | 20% | - Reduction, decomposition, and aggregation operations - Stream creation: Arrays.stream(), IntStream.range(), etc. - Lazy evaluation and parallel streams - Stream pipelines, intermediate and terminal operations |
| Topic 5: Concurrency Enhancements | 10% | - Fork/Join framework - Java SE 8 concurrent collections improvements - Executors, ExecutorService, Callable, Future |
| Topic 6: Java Language Enhancements | 15% | - Diamond operator improvements - Try-with-resources statements - Multi-catch exception handling - String in switch statement, binary literals, underscores in literals - Type inference and target typing |
| Topic 7: Localization | 10% | - Locale class and resource bundles - Formatting dates, numbers, and currencies |
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