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Preparing for the Oracle 1z1-819 Certification Exam requires a strong understanding of Java SE 11 programming concepts and hands-on experience with Java development. Candidates should have practical experience working with Java SE 11 and should be familiar with the exam objectives and format. There are many resources available to help candidates prepare for the exam, including study guides, practice tests, and online courses.

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Oracle 1Z0-819 certification exam consists of 80 multiple-choice and multiple-select questions that must be completed within 180 minutes. 1z1-819 Exam is designed to test candidates' knowledge and skills in areas such as Java data types, collections, functional programming, concurrency, and I/O.

Oracle Java SE 11 Developer Sample Questions (Q174-Q179):

NEW QUESTION # 174
Given:

What is the result?

A. A java.lang.IllegalArgumentException is thrown.
B. It fails to compile.
C. nothing
D. 0
E. 1

Answer: B

Explanation:

NEW QUESTION # 175
Given:

Which two are correct? (Choose two.)

A. The output will be exactly 2 1 3 4 5.
B. Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5.
C. The program prints 1 4 2 3, but the order is unpredictable.
D. Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5, but the order is unpredictable.
E. Replacing forEach() with forEachOrdered(), the program prints 1 2 3 4 5.

Answer: C,E

Explanation:

NEW QUESTION # 176
Given:

Which statement on line 1 enables this code to compile?

A. Function<Integer> f = n > n * 2;
B. Function<Integer, Integer> f = n > n * 2;
C. Function<int, int> f = n > n * 2;
D. Function<int> f = n > n * 2;
E. Function f = n > n * 2;

Answer: B

Explanation:

NEW QUESTION # 177
Given:

What is known about the Sportscar class?

A. The Sportscar subclass cannot override setTurbo method from the superclass Automobile.
B. The Sportscar class is a superclass that has more functionality than the Automobile class.
C. The Sportscar class inherits the setTurbo method from the superclass Automobile.
D. The Sportscar class is a subclass of Automobile and inherits its methods.

Answer: D

NEW QUESTION # 178
Which two statements are correct about modules in Java? (Choose two.)

A. java.base exports all of the Java platforms core packages.
B. module-info.java cannot be empty.
C. By default, modules can access each other as long as they run in the same folder.
D. module-info.java can be placed in any folder inside module-path.
E. A module must be declared in module-info.java file.

Answer: A,E

NEW QUESTION # 179
......

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