Study HIGH Quality 1z1-819 Free Study Guides and Exams Tutorials [Q24-Q43]

Study HIGH Quality 1z1-819 Free Study Guides and Exams Tutorials

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How much Java SE 11 Developer Exam Number: 1Z0-819 costs

No. of Questions: 60 Questions
Types of questions: Performance Based Questions
Examination Fees: $250 USD
Examination Name: Java SE 11 Developer Exam Number: 1Z0-819

NEW QUESTION 24
Given the code fragment:

What is the output?

A. A runtime exception is thrown.
B. The compilation fails.
C. [-1, -2, -3]
D. [-3, -2, -1]

Answer: A

NEW QUESTION 25
Given:

and omitting the throws FooException clause results in a compilation error.
Which statement is true about FooException?

A. The body of foo can only throw FooException.
B. FooException is unchecked.
C. The body of foo can throw FooException or one of its subclasses.
D. FooException is a subclass of RuntimeError.

Answer: C

NEW QUESTION 26
Given:

What is the type of x?

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

Answer: B

NEW QUESTION 27
Given:

Which statement is equivalent to line 1?

A. double totalSalary = list.stream().mapToDouble(e > e.getSalary() * ratio).reduce(starts, bo);
B. double totalSalary = list.stream().map(Employee::getSalary * ratio).reduce (bo).orElse(0.0);
C. double totalSalary = list.stream().mapToDouble(e > e.getSalary() * ratio).sum;
D. double totalSalary = list.stream().map(e > e.getSalary() * ratio).reduce (bo).ifPresent (p > p.doubleValue());

Answer: B

Explanation:

NEW QUESTION 28
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. Optional<String> result = fruits.stream().anyMatch(f -> f.contains("n"));
B. String result = fruits.stream().filter(f -> f.contains("n")).findAny();
C. Optional<String> result = fruits.stream().filter(f -> f.contains ("n")).findFirst ();
D. fruits.stream().filter(f -> f.contains("n")).forEachOrdered(System.out::print);

Answer: D

Explanation:

NEW QUESTION 29
Given:
Path p1 = Paths.get("/scratch/exam/topsecret/answers");
Path p2 = Paths.get("/scratch/exam/answers/temp.txt");
Path p3 = Paths.get("/scratch/answers/topsecret");
Which two statements print ..\..\..\answers\topsecret? (Choose two.)

A. System.out.print(p2.relativize(p3));
B. System.out.print(p1.relativize(p2));
C. System.out.print(p1.relativize(p3));
D. System.out.print(p2.relativize(p1));
E. System.out.print(p3.relativize(p2));
F. System.out.print(p3.relativize(p1));

Answer: C,F

NEW QUESTION 30
Given the code fragment:

What is the result?

A. True
B. False
C. A java.lang, UnsupportedOperationException is thrown.
D. A java.lang.NullPointerException is thrown.

Answer: C

NEW QUESTION 31
Given:
/code/a/Test.java
containing:

and
/code/b/Best.java
containing:
package b;
public class Best { }
Which is the valid way to generate bytecode for all classes?

A. java -cp /code a.Test
B. javac -d /code /code/a/Test.java /code/b/Best.java
C. javac -d /code /code/a/Test
D. java /code/a/Test.java /code/b/Best.java
E. java /code/a/Test.java
F. javac -d /code /code/a/Test.java

Answer: B

NEW QUESTION 32
Given the declaration:

Examine this code fragment:
/* Loc1 */ class ProcessOrders { ... }
Which two annotations may be applied at Loc1 in the code fragment? (Choose two.)

A. @Resource
B. @Resource(priority=0)
C. @Resource(priority=100)
D. @Resource(name="Customer1", priority=100)
E. @Resource(name="Customer1")

Answer: B,C

NEW QUESTION 33
Given:

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

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

Answer: B

NEW QUESTION 34
Given:

What is the result?

A. 0
B. 1
C. An exception is thrown at runtime.
D. 2

Answer: D

Explanation:
Explanation
Graphical user interface, text, application, chat or text message Description automatically generated

NEW QUESTION 35
Given:

What is the result?

A. appleorangegrapelemonapricotwatermelon
B. appleapricotgrapelemonorangewatermelon
C. watermelonorangelemongrapeapricotapple
D. nothing

Answer: C

Explanation:

NEW QUESTION 36
Given:

You want to obtain the Filechannel object on line 1.
Which code fragment will accomplish this?
A)

B)

C)

D)

A. Option A
B. Option C
C. Option D
D. Option B

Answer: A

NEW QUESTION 37
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 38
Given:

Which option should you choose to enable the code to print Something happened?

A. Add extends Exception on line 1.
Add extends GeneralException on line 2.
B. Add extends SpecificException on line 1.
Add extends GeneralException on line 2.
C. Add extends Exception on line 1.
Add extends Exception on line 2.
D. Add extends GeneralException on line 1.
Add extends Exception on line 2.

Answer: A

Explanation: