[Nov-2021] 1z1-819 Dumps are Available for Instant Access from PassCollection
Study resources for the Valid 1z1-819 Braindumps!
Certification Path for Java SE 11 Developer Exam Number: 1Z0-819
Java SE 11 Developer Exam Number: 1Z0-819 is a fundamental exam. Successful completion by candidates will allow them to achieve Oracle Certified Professional: Java SE 11 Developer.
Understanding functional and technical aspects of Java SE 11 Developer Exam Number: 1Z0-819
The following will be discussed in the ORACLE 1Z0-006 dumps pdf:
- Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
- Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
- Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
- Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
- Use generics, including wildcards
- Use a Java array and List, Set, Map and Deque collections, including convenience methods
- Use Java Streams to filter, transform and process data
- Sort collections and arrays using Comparator and Comparable interfaces
NEW QUESTION 62
Given:
Which two lines cause compilation errors? (Choose two.)
- A. line 9
- B. line 12
- C. line 7
- D. line 6
- E. line 8
Answer: C,D
NEW QUESTION 63
Why does this compilation fail?
- A. The method print (object) and the method print (object...) are duplicates of each other.
- B. The method Y. print (object) does not call the method super.print (object)
- C. The method x. print (object) is not accessible to Y.
- D. In method x. print (Collection), system. Out :: prints is an invalid Java identifier.
- E. The method Y. print (object...) cannot override the final method x.print (object....).
Answer: A
NEW QUESTION 64
Given:
Which loop incurs a compile time error?
- A. the loop starting line 3
- B. the loop starting line 7
- C. the loop starting line 11
- D. the loop starting line 14
Answer: D
NEW QUESTION 65
Assuming the Widget class has a getPrice method, this code does not compile:
Which two statements, independently, would allow this code to compile? (Choose two.)
- A. Replace line 1 with List<Widget> widgetStream = widgets.stream();.
- B. Replace line 5 with widgetStream.filter((Widget a) > a.getPrice() > 20.00).
- C. Replace line 4 with Stream<Widget> widgetStream = widgets.stream();.
- D. Replace line 5 with widgetStream.filter(a > ((Widget)a).getPrice() > 20.00).
Answer: C,D
NEW QUESTION 66
Given:
What is the output?
- A. Hello world!Hello world!
- B. Bonjour le monde!Bonjour le monde!
- C. Bonjour le monde!Hello world!
- D. Hello world!Bonjour le monde!
Answer: C
Explanation:
NEW QUESTION 67
Which code fragment compiles?
- A. Option D
- B. Option B
- C. Option A
- D. Option C
Answer: A
Explanation:
NEW QUESTION 68
Given:
What is the result?
- A. 0
- B. 1
- C. 0 4 9
- D. nothing
Answer: D
NEW QUESTION 69
Given this enum declaration:
Examine this code:
System.out.println(Letter.values()[1]);
What code should be written at line 5 for this code to print 200?
- A. public String toString() { return String.valueOf(ALPHA.v); }
- B. public String toString() { return String.valueOf(Letter.values()[1]); }
- C. public String toString() { return String.valueOf(v); }
- D. String toString() { return "200"; }
Answer: C
Explanation:
NEW QUESTION 70
Given the code fragment:
What is the result?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 71
Given:
What is the output?
- A. I am an array
- B. I am an object
- C. I am an object array
- D. The compilation fails due to an error in line 1.
Answer: B
NEW QUESTION 72
Which is the correct order of possible statements in the structure of a Java class file?
- A. package, import, class
- B. import, package, class
- C. package, class, import
- D. import, class, package
- E. class, package, import
Answer: A
NEW QUESTION 73
Given:
What is the result?
- A. 6104 3
- B. 0
- C. 10126 3
- D. 6910 3
Answer: A
Explanation:
NEW QUESTION 74
Which code is correct?
- A. Runnable r = () > System.out::print;
- B. Runnable r = > System.out.println("Message");
- C. Runnable r = () -> {System.out.println("Message");};
- D. Runnable r = {System.out.println("Message")};
- E. Runnable r = "Message" > System.out.println();
Answer: C
NEW QUESTION 75
Given:
Automobile.java
Car.java
What must you do so that the code prints 4?
- A. Replace the code in line 2 with Car ob = new Car();
- B. Add @Override annotation in line 2.
- C. Remove the parameter from wheels method in line 3.
- D. Remove abstract keyword in line 1.
Answer: B
Explanation:
NEW QUESTION 76
Given:
Which three are correct? (Choose three.)
- A. f1.foo(li) prints Hello world!
- B. b1.foo(li) prints Hello world!
- C. f2.foo(li) prints Bonjour le monde!
- D. f2.foo(li) prints Hola Mundo!
- E. f1.foo(li) prints Bonjour le monde!
- F. f2.foo(li) prints Hello world!
- G. f1.foo(li) prints Hola Mundo!
- H. b1.foo(li) prints Bonjour le monde!
- I. b1.foo(li) prints Hola Mundo!
Answer: B,E,I
NEW QUESTION 77
Given a Memberclass with fields for nameand yearsMembership, including getters and setters and a print method, and a list of clubMembersmembers:
Which two Stream methods can be changed to use method references? (Choose two.)
- A. filter(Member::getYearsMembership() >= testMembershipLength)
- B. filter(Integer::equals(0))
- C. map(testName::compareToIgnoreCase)
- D. peek(Member::print)
Answer: A,C
NEW QUESTION 78
Given the code fragment:
What is the result?
- A. False
- B. A java.lang, UnsupportedOperationException is thrown.
- C. A java.lang.NullPointerException is thrown.
- D. True
Answer: B
NEW QUESTION 79
Given:
Which two lines cause compilation errors? (Choose two.)
- A. line 9
- B. line 12
- C. line 7
- D. line 6
- E. line 8
Answer: C,D
NEW QUESTION 80
Given:
executed using command:
java Hello "Hello World" Hello World
What is the output?
- A. Hello World Hello World
- B. An exception is thrown at runtime.
- C. Hello WorldHelloWorld
- D. Hello WorldHello World
- E. HelloHello WorldHelloWorld
Answer: A
NEW QUESTION 81
Given:
What is the result?
- A. this is it 3
- B. is it 1
- C. this is it 2
- D. is it 0
- E. An IndexOutOfBoundsException is thrown at runtime.
Answer: C
Explanation:
NEW QUESTION 82
Given:
Which statement is true?
- A. All classes from the package java.time. are loaded for the class Diary.
- B. Only LocalDate class from java.time package is loaded.
- C. Class Tester does not need to import java.time.LocalDate because it is already visible to members of the package test.
- D. Tester must import java.time.LocalDate in order to compile.
Answer: C
NEW QUESTION 83
Given the code fragment:
You want to examine whether path is a directory.
Which code inserted on line 1 will accomplish this?
- A. BasicFileAttributes attributes = Files, readAttributes (path, FileAttributes, class);
- B. BasicFileAttributes attributes =Files.getAttribute (path, ''insdirectory'');
- C. BasicFileAttributes attributes = Files isDirectory (path);
- D. BasicFileAttributes attributes = Files.readAttributes(path, BasicFileAttributes.class
Answer: A
NEW QUESTION 84
......
Average Salary of Java SE 11 Developer Exam Number: 1Z0-819 Certified Professionals
The average salary is between $71k and $103k.
Updated 1z1-819 Tests Engine pdf - All Free Dumps Guaranteed: https://www.passcollection.com/1z1-819_real-exams.html
Latest Oracle Java SE 1z1-819 Actual Free Exam Questions: https://drive.google.com/open?id=1s_w2BRy0aHnb5l7_xv32ZsVAt_g4YLya
