All About Verified 1Z0-819 Exam Engine

NEW QUESTION 1
Which three guidelines are used to protect confidential information? (Choose three.)

• A. Limit access to objects holding confidential information.
• B. Clearly identify and label confidential information.
• C. Manage confidential and other information uniformly.
• D. Transparently handle information to improve diagnostics.
• E. Treat user input as normal information.
• F. Validate input before storing confidential information.
• G. Encapsulate confidential information.

Answer: ADF

NEW QUESTION 2
Given:

Which two lines can replace line 1 so that the Y class compiles? (Choose two.)

• A. map.forEach((k, v) -> set(v)));
• B. set(map.values());
• C. super.set(List<String> map)
• D. super.set(map.values());
• E. set(map)

Answer: BD

NEW QUESTION 3
Given:

What is the type of x?

• A. char
• B. List<Character>
• C. String
• D. List<String>

Answer: C

NEW QUESTION 4
Given:

Which is true about line 1?

• A. If the value is not present, a NoSuchElementException is thrown at run time.
• B. It always executes the System.out::print statement.
• C. If the value is not present, a NullPointerException is thrown at run time.
• D. If the value is not present, nothing is done.

Answer: D

Explanation:

NEW QUESTION 5
Given:

What is the result?

• A. NullPointerException is thrown at line 4.
• B. NullPointerException is thrown at line 10.
• C. A compilation error occurs.
• D. Hello

Answer: D

Explanation:

NEW QUESTION 6
Given:
var fruits = List.of(“apple”, “orange”, “banana”, “lemon”);
You want to examine the first element that contains the character n. Which statement will accomplish this?

• A. String result = fruits.stream().filter(f > f.contains(“n”)).findAny();
• B. fruits.stream().filter(f > f.contains(“n”)).forEachOrdered(System.out::print);
• C. Optional<String> result = fruits.stream().filter(f > f.contains (“n”)).findFirst ();
• D. Optional<String> result = fruits.stream().anyMatch(f > f.contains(“n”));

Answer: B

Explanation:

NEW QUESTION 7
Given:

This code results in a compilation error.
Which code should be inserted on line 1 for a successful compilation?

• A. Consumer consumer = msg -> { return System.out.print(msg); };
• B. Consumer consumer = var arg > {System.out.print(arg);};
• C. Consumer consumer = (String args) > System.out.print(args);
• D. Consumer consumer = System.out::print;

Answer: D

Explanation:

NEW QUESTION 8
Given:

What code must you insert on Line 1 to enable the code to print Hello world?

• A. Hello.Greeting myG = new Hello.Greeting() myG.sayHi();
• B. Hello myH = new Hello();Hello.Greeting myG = myH.new Greeting(); myG.sayHi();
• C. Hello myH = new Hello();Hello.Greeting myG = myH.new Hello.Greeting(); myG.sayHi();
• D. Hello myH = new Hello(); Greeting myG = new Greeting(); myG.sayHi ();

Answer: B

NEW QUESTION 9
Given:

What is the result?

• A. WorkingUnknown
• B. Unknown
• C. TuesdayUnknown
• D. The compilation fails.
• E. Tuesday
• F. Working

Answer: B

Explanation:

NEW QUESTION 10
Given:

What is the result?

• A. Good Morning, Potter
• B. Good Night, Potter
• C. Good Morning, Harry
• D. Good Night, Harry

Answer: B

Explanation:

NEW QUESTION 11
Given the code fragment:
Path source = Paths.get(“/repo/a/a.txt”); Path destination = Paths.get(“/repo”); Files.move(source, destination); // line 1 Files.delete (source); // line 2
Assuming the source file and destination folder exist, what Is the result?

• A. A java.nio.file.FileAlreadyExistsException is thrown on line 1.
• B. A java.nio.file.NoSuchFileException is thrown on line 2.
• C. A copy of /repo/a/a.txt is moved to the /repo directory and /repo/a/a.txt is deleted.
• D. a.txt is renamed repo.

Answer: C

NEW QUESTION 12
Given:

executed with this command: java Main one two three
What is the output of this class?

• A. The compilation fails.
• B. 1) one2) two3) three
• C. A java.lang.ArrayIndexOutOfBoundsException is thrown.
• D. 1) one
• E. nothing

Answer: B

NEW QUESTION 13
Given:

What is the result?

• A. null
• B. nothing
• C. It fails to compile.
• D. java.lang.IllegalAccessException is thrown.
• E. Student

Answer: C

NEW QUESTION 14
Which statement about access modifiers is correct?

• A. An instance variable can be declared with the static modifier.
• B. A local variable can be declared with the final modifier.
• C. An abstract method can be declared with the private modifier.
• D. An inner class cannot be declared with the public modifier.
• E. An interface can be declared with the protected modifier.

Answer: B

NEW QUESTION 15
Given:

What is the result?

• A. nothing
• B. 10
• C. 0 4 9

Answer: A

NEW QUESTION 16
var numbers = List.of(0,1,2,3,4,5,6,7,8,9);
You want to calculate the average of numbers. Which two codes will accomplish this? (Choose two.)

• A. double avg = numbers.stream().parallel().averagingDouble(a > a);
• B. double avg = numbers.parallelStream().mapToInt (m > m).average().getAsDouble ();
• C. double avg = numbers.stream().mapToInt (i > i).average().parallel();
• D. double avg = numbers.stream().average().getAsDouble();
• E. double avg = numbers.stream().collect(Collectors.averagingDouble(n > n));

Answer: BD

Explanation:

NEW QUESTION 17
Given: Automobile.java

Car.java

What must you do so that the code prints 4?

• A. Remove the parameter from wheels method in line 3.
• B. Add @Override annotation in line 2.
• C. Replace the code in line 2 with Car ob = new Car();
• D. Remove abstract keyword in line 1.

Answer: B

Explanation:

NEW QUESTION 18
......