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[General] Check The Quality Of The Oracle 1z0-809 Exam Questions Demo

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【General】 Check The Quality Of The Oracle 1z0-809 Exam Questions Demo

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Oracle Java SE 8 Programmer II Sample Questions (Q19-Q24):NEW QUESTION # 19
Given the code fragment:

Which should be inserted into line n1to print Average = 2.5?
  • A. DoubleStream str = Stream.of (1.0, 2.0, 3.0, 4.0);
  • B. Stream str = Stream.of (1, 2, 3, 4);
  • C. IntStream str = Stream.of (1, 2, 3, 4);
  • D. IntStream str = IntStream.of (1, 2, 3, 4);
Answer: A

NEW QUESTION # 20
Given the code fragment:

Which code fragment, when inserted at line n1, ensures falseis printed?
  • A. boolean b = cs.stream() .findAny() .get() .equals("Java");
  • B. boolean b = cs.stream() .allMatch(w -> w.equals("Java"));
  • C. boolean b = cs.stream() .findFirst() .get() .equals("Java");
  • D. boolean b = cs.stream() .anyMatch (w -> w.equals ("Java"));
Answer: D

NEW QUESTION # 21
Given:

and the command:
java Product 0
What is the result?
  • A. A NumberFormatException is thrown at run time.
  • B. An AssertionError is thrown.
  • C. New Price: 0.0
  • D. A compilation error occurs at line n1.
Answer: C

NEW QUESTION # 22
Given the code fragment:
9. Connection conn = DriveManager.getConnection(dbURL, userName, passWord);
10. String query = "SELECT id FROM Employee";
11. try (Statement stmt = conn.createStatement()) {
12. ResultSet rs = stmt.executeQuery(query);
13.stmt.executeQuery("SELECT id FROM Customer");
14. while (rs.next()) {
15. //process the results
16.System.out.println("Employee ID: "+ rs.getInt("id"));
17.}
18. } catch (Exception e) {
19. System.out.println ("Error");
20. }
Assume that:
The required database driver is configured in the classpath.
The appropriate database is accessible with the dbURL, userName, and passWord exists.
The Employee and Customer tables are available and each table has id column with a few records and the SQL
queries are valid.
What is the result of compiling and executing this code fragment?
  • A. The program prints employee IDs.
  • B. The program prints customer IDs.
  • C. compilation fails on line 13.
  • D. The program prints Error.
Answer: D

NEW QUESTION # 23
Given that these files exist and are accessible:

and given the code fragment:

Which code fragment can be inserted at line n1to enable the code to print only /company/emp?
Stream<Path> stream = Files.list (Paths.get ("/company"));
  • A. Stream<Path> stream = Files.walk (Paths.get ("/company"));
  • B. Stream<Path> stream = Files.find(
  • C. Paths.get ("/company"), 1,
    (p,b) -> b.isDirectory (), FileVisitOption.FOLLOW_LINKS);
  • D. Stream<Path> stream = Files.list (Paths.get ("/company/emp"));
Answer: C

NEW QUESTION # 24
......
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