FANTASTIC ORACLE FREE 1Z0-819 EXAM QUESTIONS - 2PASS4SURE FREE DOWNLOAD

Fantastic Oracle Free 1Z0-819 Exam Questions - 2Pass4sure Free Download

Fantastic Oracle Free 1Z0-819 Exam Questions - 2Pass4sure Free Download

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The Java SE 11 Developer 1Z0-819 certification offers a great opportunity for beginners and professionals to demonstrate their skills and abilities to perform a certain task. For the complete, comprehensive, for Java SE 11 Developer 1Z0-819 Exam Preparation you can get assistance from Java SE 11 Developer Exam Questions.

To prepare for the Oracle 1Z0-819 Certification Exam, candidates need to have a solid understanding of Java SE 11 programming. They also need to be familiar with the exam format and the types of questions that will be asked. 1Z0-819 exam consists of multiple-choice questions and performance-based tasks that require candidates to write code to solve problems.

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Quiz 2025 Oracle 1Z0-819 Latest Free Exam Questions

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Oracle Java SE 11 Developer Sample Questions (Q25-Q30):

NEW QUESTION # 25
Given TripleThis.java:

Compiling TripleThis.java gives this compiler warning:
Note: TripleThis.java uses unchecked or unsafe operations.
Which two replacements done together remove this compiler warning?

  • A. Replace line 9 with function<Integer> tripler = x-> - { return (Integer) X * 3 ; }.
  • B. Replace line 12 with public static void printValue function<Integer> f, int num) {.
  • C. Replace line 9 with function<Integer>, Integer> = X -> { return (integer) x * 3; }.
  • D. Replace line 12 with public static <T> void printValue (Function<T, T> f, T num ) {,
  • E. Replace line 12 with public static int printValue function<Integer, Integer>, f, T num {.

Answer: A,E


NEW QUESTION # 26
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(name="Customer1")
  • B. @Resource(priority=100)
  • C. @Resource
  • D. @Resource(name="Customer1", priority=100)
  • E. @Resource(priority=0)

Answer: B,E


NEW QUESTION # 27
Your organization makes mlib.jar available to your cloud customers. While working on a code cleanup project for mlib.jar, you see this method by customers:

What security measures should be added to this method so that it meets the requirements for a customer accessible method?

  • A. Make enableService private.
  • B. Enclose the call to new Socket In an AccessController.doPrivileged block.
  • C. Create a method that validates the hostName and portNumber parameters before opening the socket.
  • D.

Answer: B


NEW QUESTION # 28
Given:

Which is true about line 1?

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

Answer: D

Explanation:


NEW QUESTION # 29
Which two statements set the default locale used for formatting numbers, currency, and percentages? (Choose two.)

  • A. Locale.setDefault(Locale.Category.FORMAT, "zh-CN");
  • B. Locale.setDefault(Locale.Category.FORMAT, Locale.CANADA_FRENCH);
  • C. Locale.setDefault(Locale.SIMPLIFIED_CHINESE);
  • D. Locale.setDefault("en_CA");
  • E. Locale.setDefault("es", Locale.US);

Answer: B,D


NEW QUESTION # 30
......

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