Exam Code: 1z0-809-JPN
Exam Name: Java SE 8 Programmer II (1z0-809日本語版)
Updated: Sep 01, 2026
Q & A: 209 Questions and Answers
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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Java Class Design | 15% | - Implement encapsulation - Implement polymorphism - Create singleton and immutable classes - Use static keyword in blocks, variables, methods, classes - Implement inheritance including visibility modifiers and composition - Override hashCode, equals, and toString methods |
| Topic 2: Generics and Collections | 15% | - Use Collections Framework: List, Set, Map, Queue - Use generic classes, interfaces, and methods - Sort and search collections - Analyze type safety and type erasure |
| Topic 3: Java Stream API | 15% | - Filter, map, and process streams - Describe Stream interface and pipeline - Work with Optional class - Use terminal operations: collect, reduce, count |
| Topic 4: Concurrency | 12% | - Use java.util.concurrent components - Use Executors, Callable, Future - Create threads: Thread class, Runnable, ExecutorService - Control thread lifecycle and synchronization |
| Topic 5: Exceptions and Assertions | 8% | - Use assertions - Create custom exceptions - Use try-catch, multi-catch, finally - Use try-with-resources |
| Topic 6: Java SE 8 Date/Time API | 7% | - Use LocalDate, LocalTime, LocalDateTime, Instant - Work with Period, Duration, time zones - Format and parse dates/times |
| Topic 7: Localization | 5% | - Use Locale class - Work with resource bundles - Format numbers, dates, messages |
| Topic 8: Advanced Java Class Design | 10% | - Create inner classes: static, local, nested, anonymous - Use abstract classes and methods - Use final keyword - Use enumerated types |
| Topic 9: Java I/O and NIO.2 | 8% | - Use Path, Files, FileSystem API - Read/write with java.io API - Stream operations on files |
| Topic 10: Lambda Expressions and Functional Interfaces | 15% | - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use method references - Use primitive and binary variants of functional interfaces - Create and use lambda expressions |
| Topic 11: JDBC | 5% | - Connect to database - Execute queries and updates - Process resultsets |
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