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Oracle 1z0-809 certification exam consists of 80 multiple-choice questions that must be completed within a time limit of 150 minutes. 1z1-809 exam covers a wide range of topics, including Java Class Design, Advanced Java Class Design, Generics and Collections, Lambda Built-in Functional Interfaces, Java Stream API, Exceptions and Assertions, Java I/O Fundamentals, Java File I/O (NIO.2), Java Concurrency, Building Database Applications with JDBC, Localization, and Annotations.
Oracle 1z1-809 exam is designed for Java developers who wish to validate their skills and knowledge of Java SE 8 programming. 1z1-809 exam is also known as the Java SE 8 Programmer II exam and is a crucial step for professionals who wish to advance their careers in the Java programming field. Passing 1z1-809 exam demonstrates that the candidate has a comprehensive understanding of Java SE 8 and can develop complex Java applications.
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Oracle 1z0-809 certification exam is designed to test a candidate's proficiency in Java SE 8 programming language. It is an advanced level certification exam for Java professionals who want to demonstrate their expertise in Java development. To pass 1z1-809 exam, a candidate needs to have a strong understanding of Java code structure, flow control, and lambda expressions.
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Oracle 1z1-809 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Java Stream API | 15% | - Use terminal operations: collect, reduce, count - Work with Optional class - Filter, map, and process streams - Describe Stream interface and pipeline |
| Advanced Java Class Design | 10% | - Create inner classes: static, local, nested, anonymous - Use enumerated types - Use abstract classes and methods - Use final keyword |
| Java SE 8 Date/Time API | 7% | - Format and parse dates/times - Use LocalDate, LocalTime, LocalDateTime, Instant - Work with Period, Duration, time zones |
| Lambda Expressions and Functional Interfaces | 15% | - Use method references - Create and use lambda expressions - Use primitive and binary variants of functional interfaces - Use built-in functional interfaces: Predicate, Consumer, Function, Supplier |
| Localization | 5% | - Use Locale class - Work with resource bundles - Format numbers, dates, messages |
| Java Class Design | 15% | - Implement polymorphism - Override hashCode, equals, and toString methods - Create singleton and immutable classes - Implement inheritance including visibility modifiers and composition - Use static keyword in blocks, variables, methods, classes - Implement encapsulation |
| JDBC | 5% | - Connect to database - Process resultsets - Execute queries and updates |
| Concurrency | 12% | - Create threads: Thread class, Runnable, ExecutorService - Use Executors, Callable, Future - Control thread lifecycle and synchronization - Use java.util.concurrent components |
| Java I/O and NIO.2 | 8% | - Stream operations on files - Use Path, Files, FileSystem API - Read/write with java.io API |
| Exceptions and Assertions | 8% | - Use try-with-resources - Create custom exceptions - Use assertions - Use try-catch, multi-catch, finally |
| Generics and Collections | 15% | - Use generic classes, interfaces, and methods - Use Collections Framework: List, Set, Map, Queue - Analyze type safety and type erasure - Sort and search collections |
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