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Oracle 1z0-809 Exam Syllabus Topics:

Topic	Details
Topic 1	Use Catch, Multi-Catch, And Finally Clauses Use Flatmap() Methods In The Stream API Develop Code That Uses The Final Keyword
Topic 2	Create And Use Arraylist, Treeset, Treemap, And Arraydeque Objects Override Hashcode, Equals, And Tostring Methods From Object Class
Topic 3	Develop Code That Declares, Implements And Or Extends Interfaces And Use The @Override Annotation Develop Code That Uses The Optional Class
Topic 4	Develop Code That Uses The Unaryoperator Interface Create Custom Exceptions And Auto-Closeable Resources Lambda Built-In Functional Interfaces
Topic 5	Work With Dates And Times Across Timezones And Manage Changes Resulting From Daylight Savings Including Format Date And Times Values
Topic 6	Use Enumerated Types Including Methods, And Constructors In An Enum Type Implement Polymorphism Create And Use A Generic Class
Topic 7	Develop Code That Uses Binary Versions Of Functional Interfaces Use Autoclose Resources With A Try-With-Resources Statement
Topic 8	Create And Use Singleton Classes And Immutable Classes Use Java.Util.Comparator And Java.Lang.Comparable Interfaces
Topic 9	Describe Stream Interface And Stream Pipeline Create Inner Classes Including Static Inner Class, Local Class, Nested Class, And Anonymous Inner Class
Topic 10	Develop Code To Extract Data From An Object Using Peek() And Map() Methods Including Primitive Versions Of The Map() Method
Topic 11	Save Results To A Collection Using The Collect Method And Group Partition Data Using The Collectors Class
Topic 12	Use The Built-In Interfaces Included In The Java.Util.Function Package Such As Predicate, Consumer, Function, And Supplier

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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