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Oracle 1Z0-809 Exam Dumps

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Description

Exam Name: Java SE 8 Programmer II
Exam Code: 1Z0-809
Related Certification(s): Oracle Java Certification
Certification Provider: Oracle
Actual Exam Duration: 150 Minutes
Number of 1Z0-809 practice questions in our database: 196 
Expected 1Z0-809 Exam Topics, as suggested by Oracle :

  • Module 1: Develop Code That Uses Static Keyword On Initialize Blocks, Variables, Methods, And Classes
  • Module 2: Develop Code To Extract Data From An Object Using Peek() And Map() Methods Including Primitive Versions Of The Map() Method
  • Module 3: Implement Inheritance Including Visibility Modifiers And Composition/ Use Method References With Streams
  • Module 4: Create And Use Arraylist, Treeset, Treemap, And Arraydeque Objects/ Override Hashcode, Equals, And Tostring Methods From Object Class
  • Module 5: Search For Data By Using Search Methods Of The Stream Classes Including Findfirst, Findany, Anymatch, Allmatch, Nonematch
  • Module 6: Save Results To A Collection Using The Collect Method And Group/Partition Data Using The Collectors Class
  • Module 7: Work With Dates And Times Across Timezones And Manage Changes Resulting From Daylight Savings Including Format Date And Times Values
  • Module 8: Create And Use Singleton Classes And Immutable Classes/ Use Java.Util.Comparator And Java.Lang.Comparable Interfaces
  • Module 9: Develop Code That Uses Stream Data Methods And Calculation Methods/ Iterate Using Foreach Methods Of Streams And List
  • Module 10: Create And Manage Date-Based And Time-Based Events Including A Combination Of Date And Time Into A Single Object Using Localdate, Localtime, Localdatetime
  • Module 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
  • Module 12: Describe Stream Interface And Stream Pipeline/ Create Inner Classes Including Static Inner Class, Local Class, Nested Class, And Anonymous Inner Class
  • Module 13: Use The Built-In Interfaces Included In The Java.Util.Function Package Such As Predicate, Consumer, Function, And Supplier
  • Module 14: Use Enumerated Types Including Methods, And Constructors In An Enum Type/ Implement Polymorphism/ Create And Use A Generic Class
  • Module 15: Develop Code That Declares, Implements And/Or Extends Interfaces And Use The @Override Annotation/ Develop Code That Uses The Optional Class
  • Module 16: Develop Code That Uses Primitive Versions Of Functional Interfaces/ Develop Code That Uses Abstract Classes And Methods
  • Module 17: Develop Code That Uses Binary Versions Of Functional Interfaces/ Use Autoclose Resources With A Try-With-Resources Statement
  • Module 18: Develop Code That Uses The Unaryoperator Interface/ Create Custom Exceptions And Auto-Closeable Resources/ Lambda Built-In Functional Interfaces
  • Module 19: Use Catch, Multi-Catch, And Finally Clauses/ Use Flatmap() Methods In The Stream API/ Develop Code That Uses The Final Keyword

Description

Exam Name: Java SE 8 Programmer II
Exam Code: 1Z0-809
Related Certification(s): Oracle Java Certification
Certification Provider: Oracle
Actual Exam Duration: 150 Minutes
Number of 1Z0-809 practice questions in our database: 196 
Expected 1Z0-809 Exam Topics, as suggested by Oracle :

  • Module 1: Develop Code That Uses Static Keyword On Initialize Blocks, Variables, Methods, And Classes
  • Module 2: Develop Code To Extract Data From An Object Using Peek() And Map() Methods Including Primitive Versions Of The Map() Method
  • Module 3: Implement Inheritance Including Visibility Modifiers And Composition/ Use Method References With Streams
  • Module 4: Create And Use Arraylist, Treeset, Treemap, And Arraydeque Objects/ Override Hashcode, Equals, And Tostring Methods From Object Class
  • Module 5: Search For Data By Using Search Methods Of The Stream Classes Including Findfirst, Findany, Anymatch, Allmatch, Nonematch
  • Module 6: Save Results To A Collection Using The Collect Method And Group/Partition Data Using The Collectors Class
  • Module 7: Work With Dates And Times Across Timezones And Manage Changes Resulting From Daylight Savings Including Format Date And Times Values
  • Module 8: Create And Use Singleton Classes And Immutable Classes/ Use Java.Util.Comparator And Java.Lang.Comparable Interfaces
  • Module 9: Develop Code That Uses Stream Data Methods And Calculation Methods/ Iterate Using Foreach Methods Of Streams And List
  • Module 10: Create And Manage Date-Based And Time-Based Events Including A Combination Of Date And Time Into A Single Object Using Localdate, Localtime, Localdatetime
  • Module 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
  • Module 12: Describe Stream Interface And Stream Pipeline/ Create Inner Classes Including Static Inner Class, Local Class, Nested Class, And Anonymous Inner Class
  • Module 13: Use The Built-In Interfaces Included In The Java.Util.Function Package Such As Predicate, Consumer, Function, And Supplier
  • Module 14: Use Enumerated Types Including Methods, And Constructors In An Enum Type/ Implement Polymorphism/ Create And Use A Generic Class
  • Module 15: Develop Code That Declares, Implements And/Or Extends Interfaces And Use The @Override Annotation/ Develop Code That Uses The Optional Class
  • Module 16: Develop Code That Uses Primitive Versions Of Functional Interfaces/ Develop Code That Uses Abstract Classes And Methods
  • Module 17: Develop Code That Uses Binary Versions Of Functional Interfaces/ Use Autoclose Resources With A Try-With-Resources Statement
  • Module 18: Develop Code That Uses The Unaryoperator Interface/ Create Custom Exceptions And Auto-Closeable Resources/ Lambda Built-In Functional Interfaces
  • Module 19: 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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Q1. Which two are elements of a singleton class? (Choose two.)

A.a transient reference to point to the single instance

B. a public method to instantiate the single instance

C. a public static method to return a copy of the singleton reference

D. a private constructor to the class

E. a public reference to point to the single instance

Correct Answer: B, D

Q2. Given the code fragment: UnaryOperator uo1 = s -> s*2;line n1 List loanValues = Arrays.asList(1000.0, 2000.0); loanValues.stream() .filter(lv -> lv >= 1500) .map(lv -> uo1.apply(lv)) .forEach(s -> System.out.print(s + '' '')); What is the result?

A.4000.0

B. 4000

C. A compilation error occurs at line n1.

D. A compilation error occurs at line n2.

Correct Answer: D

Q3. Given the code fragment: List str = Arrays.asList (''my'', ''pen'', ''is'', ''your', ''pen''); Predicate test = s -> { int i = 0; boolean result = s.contains (''pen''); System.out.print(i++) + '':''); return result; }; str.stream() .filter(test) .findFirst() .ifPresent(System.out ::print); What is the result?

A.0 : 0 : pen

B. 0 : 1 : pen

C. 0 : 0 : 0 : 0 : 0 : pen

D. 0 : 1 : 2 : 3 : 4 :

E. A compilation error occurs.

Correct Answer: A

Q4. What is true about the jav a.sql.Statement interface?

A.It provides a session with the database.

B. It is used to get an instance of a Connection object by using JDBC drivers.

C. It provides a cursor to fetch the resulting data.

D. It provides a class for executing SQL statements and returning the results.

Correct Answer: D

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