Download Java SE 11 Programmer II.1z0-816.ExamTopics.2026-07-12.40q.vcex

Vendor: Oracle
Exam Code: 1z0-816
Exam Name: Java SE 11 Programmer II
Date: Jul 12, 2026
File Size: 464 KB
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Demo Questions

Question 1
Given:
var fruits = List.of(“apple”, “orange”, “banana”, “lemon”);
You want to examine the first element that contains the character n.
Which statement will accomplish this?
  1. String result = fruits.stream().filter(f −> f.contains(“n”)).findAny();
  2. fruits.stream().filter(f −> f.contains(“n”)).forEachOrdered(System.out::print);
  3. Optional<String> result = fruits.stream().filter(f −> f.contains(“n”)).findFirst ();
  4. Optional<String> result = fruits.stream().anyMatch(f −> f.contains(“n”));
Correct answer: B
Question 2
Given:
Which one is correct?
  1. An IllegalThreadStateException is thrown at run time.
  2. Three threads are created.
  3. The compilation fails.
  4. Four threads are created.
Correct answer: A
Question 3
Given this enum declaration:
Examine this code:
System.out.println(Alphabet.getFirstLetter());
What code should be written at line 3 to make this code print A?
  1. final String getFirstLetter() { return A.toString(); }
  2. static String getFirstLetter() { return Alphabet.values()[1].toString(); }
  3. static String getFirstLetter() { return A.toString(); }
  4. String getFirstLetter() { return A.toString(); }
Correct answer: C
Question 4
Given the code fragment:
Path source = Paths.get(“/repo/a/a.txt”);
Path destination = Paths.get(“/repo”);
Files.move(source, destination); // line 1
Files.delete (source);// line 2 -
Assuming the source file and destination folder exist, what Is the result?
  1. A java.nio.file.FileAlreadyExistsException is thrown on line 1.
  2. A java.nio.file.NoSuchFileException is thrown on line 2.
  3. A copy of /repo/a/a.txt is moved to the /repo directory and /repo/a/a.txt is deleted.
  4. a.txt is renamed repo.
Correct answer: C
Question 5
Consider this method declaration:
A) “SET SESSION AUTHORIZATION “ + user
B) “SET SESSION AUTHORIZATION “ + stmt.enquoteIdentifier(user)
Is A or B the correct replacement for <EXPRESSION> and why?
  1. A, because it sends exactly the value of user provided by the calling code.
  2. B, because enquoting values provided by the calling code prevents SQL injection.
  3. A and B are functionally equivalent.
  4. A, because it is unnecessary to enclose identifiers in quotes.
  5. B, because all values provided by the calling code should be enquoted.
Correct answer: A
Question 6
Which two safely validate inputs? (Choose two.)
  1. Delegate numeric range checking of values to the database.
  2. Accept only valid characters and input values.
  3. Use trusted domain-specific libraries to validate inputs.
  4. Assume inputs have already been validated.
  5. Modify the input values, as needed, to pass validation.
Correct answer: A, B
Question 7
Which two statements set the default locale used for formatting numbers, currency, and percentages? (Choose two.)
  1. Locale.setDefault(Locale.Category.FORMAT, “zh-CN”);
  2. Locale.setDefault(Locale.Category.FORMAT, Locale.CANADA_FRENCH);
  3. Locale.setDefault(Locale.SIMPLIFIED_CHINESE);
  4. Locale.setDefault(“en_CA”);
  5. Locale.setDefault(“es”, Locale.US);
Correct answer: B, D
Question 8
Given:
Which two are secure serialization of these objects? (Choose two.)
  1. Define the serialPersistentFields array field.
  2. Declare fields transient.
  3. Implement only readResolve to replace the instance with a serial proxy and not writeReplace.
  4. Make the class abstract.
  5. Implement only writeReplace to replace the instance with a serial proxy and not readResolve.
Correct answer: A, C
Question 9
Given:
When run and all three files exist, what is the state of each reader on Line 1?
  1. All three readers are still open.
  2. All three readers have been closed.
  3. The compilation fails.
  4. Only reader1 has been closed.
Correct answer: C
Question 10
Given the Person class with age and name along with getter and setter methods, and this code fragment:
What will be the result?
  1. Aman Tom Peter
  2. Tom Aman Peter
  3. Aman Peter Tom
  4. Tom Peter Aman
Correct answer: C
Question 11
Given:
Which two independent changes will make the Main class compile? (Choose two.)
  1. Move the entire Student class declaration to a separate Java file, Student.java.
  2. Change line 2 to public Student(String classname).
  3. Change line 1 to public class Student {.
  4. Change line 3 to Student student = new Student(“Biology”);.
  5. Change line 1 to static class Student {.
Correct answer: B, D
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