Oracle : 1z0-809 Korean Questions & Answers

Last Updated: Sep 07, 2025

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Java 1Z0-809 Free Test is a test created to demonstrate all the features of our Java8 Professional Web Simulator. You will be able to access 25 full questions and will have 44 minutes to finish the test.

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Oracle 1z0-809 Korean Exam Syllabus Topics:

TopicDetails
Topic 1
  • Work With Dates And Times Across Timezones And Manage Changes Resulting From Daylight Savings Including Format Date And Times Values
Topic 2
  • Create And Use Singleton Classes And Immutable Classes
  • Use Java.Util.Comparator And Java.Lang.Comparable Interfaces
Topic 3
  • Use The Built-In Interfaces Included In The Java.Util.Function Package Such As Predicate, Consumer, Function, And Supplier
Topic 4
  • Use Enumerated Types Including Methods, And Constructors In An Enum Type
  • Implement Polymorphism
  • Create And Use A Generic Class
Topic 5
  • Create And Use Arraylist, Treeset, Treemap, And Arraydeque Objects
  • Override Hashcode, Equals, And Tostring Methods From Object Class
Topic 6
  • Implement Inheritance Including Visibility Modifiers And Composition
  • Use Method References With Streams
Topic 7
  • Describe Stream Interface And Stream Pipeline
  • Create Inner Classes Including Static Inner Class, Local Class, Nested Class, And Anonymous Inner Class
Topic 8
  • Develop Code That Uses Static Keyword On Initialize Blocks, Variables, Methods, And Classes
Topic 9
  • Develop Code That Uses Binary Versions Of Functional Interfaces
  • Use Autoclose Resources With A Try-With-Resources Statement
Topic 10
  • Develop Code That Uses Stream Data Methods And Calculation Methods
  • Iterate Using Foreach Methods Of Streams And List
Topic 11
  • Define And Create And Manage Date-Based And Time-Based Events Using Instant, Period, Duration, And Temporalunit
  • Filter A Collection By Using Lambda Expressions
Topic 12
  • Develop Code That Uses Primitive Versions Of Functional Interfaces
  • Develop Code That Uses Abstract Classes And Methods
Topic 13
  • Create And Manage Date-Based And Time-Based Events Including A Combination Of Date And Time Into A Single Object Using Localdate, Localtime, Localdatetime
Topic 14
  • Develop Code To Extract Data From An Object Using Peek() And Map() Methods Including Primitive Versions Of The Map() Method

Reference: https://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=5001&get_params=p_exam_id:1Z0-809

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1Z0-809 Exam topics

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  • Building Database Applications with JDBC
  • Java Concurrency
  • Localization
  • Generics and Collections
  • Advanced Java Class Design
  • Java Class Design
  • Exceptions and Assertions
  • Lambda Built-in Functional Interfaces
  • Java File I/O (NIO.2)
  • Use Java SE 8 Date/Time API
  • Java Stream API

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