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1Z0-809 Exam Questions and Core Topics
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Develop Code That Uses Static Keyword On Initialize Blocks, Variables, Methods, And Classes
Develop Code To Extract Data From An Object Using Peek() And Map() Methods Including Primitive Versions Of The Map() Method
Implement / Carry out Inheritance Including Visibility Modifiers And Composition/ Use Method References With Streams
Create / Construct And Use Arraylist, Treeset, Treemap, And Arraydeque Objects/ Override Hashcode, Equals, And Tostring Methods From Object Class
Search For Data By Using Search Methods Of The Stream Classes Including Findfirst, Findany, Anymatch, Allmatch, Nonematch
Save Results To A Collection Using The Collect Method And Group/Partition Data Using The Collectors Class
Work With Dates And Times Across Timezones And Manage / Supervise Changes Resulting From Daylight Savings Including Format Date And Times Values
Create / Construct And Use Singleton Classes And Immutable Classes/ Use Java.Util.Comparator And Java.Lang.Comparable Interfaces
Develop Code That Uses Stream Data Methods And Calculation Methods/ Iterate Using Foreach Methods Of Streams And List
Create / Construct And Manage / Supervise Date-Based And Time-Based Events Including A Combination Of Date And Time Into A Single Object Using Localdate, Localtime, Localdatetime
Define / illustrate And Create / Construct And Manage / Supervise Date-Based And Time-Based Events Using Instant, Period, Duration, And Temporalunit/ Filter A Collection By Using Lambda Expressions
Describe / Outline Stream Interface And Stream Pipeline/ Create / Construct Inner Classes Including Static Inner Class, Local Class, Nested Class, And Anonymous Inner Class
Use The Built-In Interfaces Included In The Java.Util.Function Package Such As Predicate, Consumer, Function, And Supplier
Use Enumerated Types Including Methods, And Constructors In An Enum Type/ Implement / Carry out Polymorphism/ Create / Construct And Use A Generic Class
Develop Code That Declares, Implements And/Or Extends Interfaces And Use The @Override Annotation/ Develop Code That Uses The Optional Class
Develop Code That Uses Primitive Versions Of Functional Interfaces/ Develop Code That Uses Abstract Classes And Methods
Develop Code That Uses Binary Versions Of Functional Interfaces/ Use Autoclose Resources With A Try-With-Resources Statement
Develop Code That Uses The Unaryoperator Interface/ Create / Construct Custom Exceptions And Auto-Closeable Resources/ Lambda Built-In Functional Interfaces
Use Catch, Multi-Catch, And Finally Clauses/ Use Flatmap() Methods In The Stream API/ Develop Code That Uses The Final Keyword
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