Free PDF 2023 Oracle 1Z0-819: Trustable Java SE 11 Developer Original Questions

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The Oracle 1Z0-819 exam is intended for Java developers who want to demonstrate their proficiency in Java SE 11 and want to advance their careers in Java development. Java SE 11 Developer certification is recognized worldwide and is highly valued by employers. By passing 1Z0-819 exam, developers can demonstrate their knowledge and skills in Java programming, which can help them to land better job opportunities and higher salaries.

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Oracle Java SE 11 Developer Sample Questions (Q99-Q104):

NEW QUESTION # 99
Given the code fragment:

What is the output?

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

Answer: C


NEW QUESTION # 100
Which two describe reasons to modularize the JDK? (Choose two.)

  • A. improves security and maintainability
  • B. improves application robustness
  • C. easier to understand the Java language
  • D. easier to expose implementation details
  • E. easier to build a custom runtime linking application modules and JDK modules

Answer: A,B


NEW QUESTION # 101
Given:

What is the result?

  • A. The compilation fails due to an error in line 3.
  • B. 0
  • C. The compilation fails due to an error in line 5.
  • D. The compilation fails due to an error in line 2.
  • E. 1
  • F. The compilation fails due to an error in line 1.
  • G. The compilation fails due to an error in line 4.

Answer: E


NEW QUESTION # 102
Which is true?

  • A. Code compiles but throws a runtime exception when run.
  • B. The code compiles and runs successfully but with a wrong answer (i.e., a bug).
  • C. It prints 666.
  • D. The code does not compile successfully.

Answer: A


NEW QUESTION # 103
Given:

Which two statements are true if the method is added to Bar? (Choose two.)

  • A. public <T> Iterable<T> foo(Collection<T> arg) { ... } overrides Foo.foo.
  • B. public <T> Collection<T> foo(Stream<T> arg) { ... } overloads Foo.foo.
  • C. public <T> Collection<T> foo(Collection<T> arg) { ... } overloads Foo.foo.
  • D. public <T> Collection<T> bar(Collection<T> arg) { ... } overloads Foo.foo.
  • E. public Collection<String> foo(Collection<String> arg) { ... } overrides Foo.foo.
  • F. public <T> List<T> foo(Collection<T> arg) { ... } overrides Foo.foo.

Answer: A,F


NEW QUESTION # 104
......

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