Get Feb-2023 updated Exam 1Z0-819 Dumps with New Questions [Q20-Q35]

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Get Feb-2023 updated Exam 1Z0-819 Dumps with New Questions

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Understanding functional and technical aspects of Java SE 11 Developer Exam Number: 1Z0-819

The following will be discussed in the ORACLE 1Z0-006 exam dumps pdf:

  • Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
  • Use a Java array and List, Set, Map and Deque collections, including convenience methods
  • Use Java Streams to filter, transform and process data
  • Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
  • Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
  • Sort collections and arrays using Comparator and Comparable interfaces
  • Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams

 

Q20. Given:

Assume the file on path does not exist. What is the result?

 
 
 
 

Q21. Given:
jdeps -jdkinternals C:workspace4SimpleSecurityjarclasses.jar
Which describes the expected output?

 
 
 
 

Q22. Given:
public class X {
}
and
public final class Y extends X {
}
What is the result of compiling these two classes?

 
 
 
 

Q23. Which is a proper JDBC URL?

 
 
 
 

Q24. Given:

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

 
 
 
 

Q25. Given:

Which three classes successfully override printOne()? (Choose three.)

 
 
 
 
 
 

Q26. Given:

What is the result?

 
 
 
 
 

Q27. Given:

Assuming that this code compiles correctly, which three statements are true? (Choose three.)

 
 
 
 
 
 

Q28. Given the code fragment:

What is the result?

 
 
 
 
 

Q29. Given:

What is true?

 
 
 
 

Q30. Given:

What is required to make the Foo class thread safe?

 
 
 
 

Q31. Given:

Which annotation should be used to remove warnings from compilation?

 
 
 
 

Q32. Given:

A) An exception is thrown at run time.
B)

C) The compilation fails due to an error on line 2.
D) The compilation fails due to an error on line 1.
E)

F)
The compilation fails due to an error on line 3.

 
 
 
 
 
 

Q33. Given:

What is the result?

 
 
 
 

Q34. Assume ds is a DataSource and the EMP table is defined appropriately.

What does executing this code fragment do?

 
 
 
 

Q35. Given:

What is the result?

 
 
 
 

1Z0-819 exam dumps with real Oracle questions and answers: https://www.actualpdf.com/1Z0-819_exam-dumps.html

         

Related Links: myportal.utt.edu.tt www.stes.tyc.edu.tw myportal.utt.edu.tt myportal.utt.edu.tt myportal.utt.edu.tt myportal.utt.edu.tt

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