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  • Latest Oct 06, 2022 Real 1z0-809 Exam Dumps Questions Valid 1z0-809 Dumps PDF [Q30-Q45]

Latest Oct 06, 2022 Real 1z0-809 Exam Dumps Questions Valid 1z0-809 Dumps PDF [Q30-Q45]

Posted on October 6, 2022 By freedumps No Comments on Latest Oct 06, 2022 Real 1z0-809 Exam Dumps Questions Valid 1z0-809 Dumps PDF [Q30-Q45]
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Latest Oct 06, 2022 Real 1z0-809 Exam Dumps Questions Valid 1z0-809 Dumps PDF

Oracle 1z0-809 Exam Dumps – PDF Questions and Testing Engine

Conclusion

Certified specialists in the field of Java development are highly valued by employers of large IT companies, so only those candidates who have proven their practical skills in using Java language by passing specialized Oracle exams can avoid serious competition and show their expertise. However, having the OCP Java SE 8 Programmer certificate will not only set you apart from other applicants but allow you to qualify for a higher salary.

So now that you see the benefits and are ready to continue on the path to Oracle certification, enroll for the Oracle 1Z0-809 exam and start preparing diligently. You have all the possibilities in your hands, it is enough to cast aside doubts and start studying hard to get ahead of the challenging job market.

Oracle 1z0-809 Exam Syllabus Topics:

Topic Details
Topic 1
  • Use The Built-In Interfaces Included In The Java.Util.Function Package Such As Predicate, Consumer, Function, And Supplier
Topic 2
  • Create And Use Singleton Classes And Immutable Classes
  • Use Java.Util.Comparator And Java.Lang.Comparable Interfaces
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 Static Keyword On Initialize Blocks, Variables, Methods, And Classes
Topic 5
  • Save Results To A Collection Using The Collect Method And Group
  • Partition Data Using The Collectors Class
Topic 6
  • Describe Stream Interface And Stream Pipeline
  • Create Inner Classes Including Static Inner Class, Local Class, Nested Class, And Anonymous Inner Class
Topic 7
  • 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 8
  • Develop Code That Uses Primitive Versions Of Functional Interfaces
  • Develop Code That Uses Abstract Classes And Methods
Topic 9
  • Create And Use Arraylist, Treeset, Treemap, And Arraydeque Objects
  • Override Hashcode, Equals, And Tostring Methods From Object Class
Topic 10
  • Develop Code That Uses The Unaryoperator Interface
  • Create Custom Exceptions And Auto-Closeable Resources
  • Lambda Built-In Functional Interfaces
Topic 11
  • Work With Dates And Times Across Timezones And Manage Changes Resulting From Daylight Savings Including Format Date And Times Values
Topic 12
  • Implement Inheritance Including Visibility Modifiers And Composition
  • Use Method References With Streams
Topic 13
  • Develop Code That Uses Stream Data Methods And Calculation Methods
  • Iterate Using Foreach Methods Of Streams And List
Topic 14
  • 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 15
  • Search For Data By Using Search Methods Of The Stream Classes Including Findfirst, Findany, Anymatch, Allmatch, Nonematch

 

QUESTION 30
Which statement is true about java.time.Duration?

 
 
 
 
Reference: http://tutorials.jenkov.com/java-date-time/duration.html#accessing-the-time-ofa-duration

QUESTION 31
Which two statements are true about synchronization and locks? (Choose two.)

 
 
 
 
 

QUESTION 32
Given:

What is the result?

 
 
 
 

QUESTION 33
You have been asked to create a ResourceBundle which uses a properties file to localize an application.
Which code example specifies valid keys of menu1 and menu2 with values of File Menu and View Menu?

 
 
 
 

QUESTION 34
Given the code fragment:

What is the result?

 
 
 
 
 

QUESTION 35
Given the records from the STUDENTtable:

Given the code fragment:

Assume that the URL, username,and passwordare valid.
What is the result?

 
 
 
 

QUESTION 36
Given the following code for the classes MyException and Test:

What is the result?

 
 
 
 
 

QUESTION 37
You are asked to create a method that accepts an array of integers and returns the highest value from that array.
Given the code fragment:

Which method signature do you use at line n1?

 
 
 
 

QUESTION 38
Given the code fragment:
List<Integer> list1 = Arrays.asList(10, 20);
List<Integer> list2 = Arrays.asList(15, 30);
//line n1
Which code fragment, when inserted at line n1, prints 10 20 15 30?

 
 
 
 

QUESTION 39
Given the code fragment:
List<Integer> codes = Arrays.asList (10, 20);
UnaryOperator<Double> uo = s -> s +10.0;
codes.replaceAll(uo);
codes.forEach(c -> System.out.println(c));
What is the result?

 
 
 
 

QUESTION 40
Given:
public class Emp {
String fName;
String lName;
public Emp (String fn, String ln) {
fName = fn;
lName = ln;
}
public String getfName() { return fName; }
public String getlName() { return lName; }
}
and the code fragment:
List<Emp> emp = Arrays.asList (
new Emp (“John”, “Smith”),
new Emp (“Peter”, “Sam”),
new Emp (“Thomas”, “Wale”));
emp.stream()
//line n1
.collect(Collectors.toList());
Which code fragment, when inserted at line n1, sorts the employees list in descending order of fName and then ascending order of lName?

 
 
 
 

QUESTION 41
Given the code fragment:
public static void main (String [ ] args) throws IOException {
BufferedReader br = new BufferedReader (new InputStremReader (System.in)); System.out.print (“Enter GDP: “);
//line 1
}
Which code fragment, when inserted at line 1, enables the code to read the GDP from the user?

 
 
 
 

QUESTION 42
Given:
1 . abstract class Shape {
2 . Shape ( ) { System.out.println (“Shape”); }
3 . protected void area ( ) { System.out.println (“Shape”); }
4 . }
5 .
6 . class Square extends Shape {
7 . int side;
8 . Square int side {
9 . /* insert code here */
1 0. this.side = side;
1 1. }
1 2. public void area ( ) { System.out.println (“Square”); }
1 3. }
1 4. class Rectangle extends Square {
1 5. int len, br;
1 6. Rectangle (int x, int y) {
1 7. /* insert code here */
1 8. len = x, br = y;
1 9. }
2 0. void area ( ) { System.out.println (“Rectangle”); }
2 1. }
Which two modifications enable the code to compile? (Choose two.)

 
 
 
 
 
 

QUESTION 43
Given the code fragment:

What is the result?

 
 
 
 

QUESTION 44
The following grid shows the state of a 2D array:

This grid is created with the following code:

Which line of code, when inserted in place of //line n1. adds an x into the grid so that the grid contains three consecutive X’S?

 
 
 
 
 

QUESTION 45
Given the code fragment:

You have been asked to define the ProductCode class. The definition of the ProductCode class must allow c1
instantiation to succeed and cause a compilation error on c2 instantiation.
Which definition of ProductCode meets the requirement?

 
 
 
 

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