Last Updated: Jul 28, 2026
No. of Questions: 60 Questions & Answers with Testing Engine
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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Interfaces and Lambda Expressions | 15% | - Static and default methods in interfaces - Method references - Functional interfaces and lambda expressions - Inheritance rules for default methods |
| Topic 2: Concurrency Enhancements | 10% | - Java SE 8 concurrent collections improvements - Executors, ExecutorService, Callable, Future - Fork/Join framework |
| Topic 3: Localization | 10% | - Formatting dates, numbers, and currencies - Locale class and resource bundles |
| Topic 4: Java Stream API | 20% | - Reduction, decomposition, and aggregation operations - Stream creation: Arrays.stream(), IntStream.range(), etc. - Stream pipelines, intermediate and terminal operations - Lazy evaluation and parallel streams |
| Topic 5: Java File I/O (NIO.2) | 15% | - WatchService for directory changes - DirectoryStream and FileVisitor - PathMatcher and file attributes - Path and Files classes operations |
| Topic 6: Java Date/Time API | 15% | - Period, Duration, and ChronoUnit - LocalDate, LocalTime, LocalDateTime, Instant - Time zones and daylight saving adjustments - Formatting and parsing dates/times |
| Topic 7: Java Language Enhancements | 15% | - Try-with-resources statements - Multi-catch exception handling - Type inference and target typing - String in switch statement, binary literals, underscores in literals - Diamond operator improvements |
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