[Apr 14, 2023] Get Latest and 100% Accurate 1z1-819 Exam Questions
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NEW QUESTION 65
Given:
Which two methods modify field values? (Choose two.)
- A. setAllCounts
- B. setTCount
- C. setACount
- D. setGCount
- E. setCCount
Answer: A,D
NEW QUESTION 66
Given:
Assuming that this code compiles correctly, which three statements are true? (Choose three.)
- A. A cannot be final.
- B. B cannot be final.
- C. A cannot be abstract.
- D. A is a subtype of B.
- E. B is a subtype of A.
- F. B cannot be abstract.
Answer: A,E,F
NEW QUESTION 67
Given the code fragment:
What is the result?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
NEW QUESTION 68
Given the code fragment:
Which can replace line 11?
- A. UnaryOperator<Interger >uo = x -> { return x * 3; };
- B. UnaryOperator<Interger >uo = (int x) -> x * 3;
- C. UnaryOperator<Interger > uo = (var x ) -> (x * 3);
- D. UnaryOperator<Interger >uo = var x -> { return x 3 ; };
Answer: C
NEW QUESTION 69
Given:
What must be added in line 1 to compile this class?
- A. catch(FileNotFoundException e) { }catch(IndexOutOfBoundsException e) { }
- B. catch(FileNotFoundException | IndexOutOfBoundsException e) { }
- C. catch(IndexOutOfBoundsException e) { }catch(FileNotFoundException e) { }
- D. catch(FileNotFoundException | IOException e) { }
- E. catch(IOException e) { }
Answer: E
NEW QUESTION 70
Examine this excerpt from the declaration of the java.se module:
What does the transitive modifier mean?
- A. Any module that requires the java.sql module does not need to require the java.se module.
- B. Any module that attempts to require the java.se module actually requires the java.sql module instead.
- C. Only a module that requires the java.se module is permitted to require the java.sql module.
- D. Any module that requires the java.se module does not need to require the java.sql module.
Answer: C
NEW QUESTION 71
Given the code fragment:
What is the result?
- A. 2 : -1
- B. -1 : 2
- C. 2 : 3
- D. 3 : 0
Answer: A
NEW QUESTION 72
Given:
What is the result?
- A. Joe Bloggs
- B. null
- C. p1
- D. The compilation fails due to an error in line 1.
Answer: D
Explanation:
NEW QUESTION 73
Given:
List<String> longlist = List.of("Hello","World","Beat");
List<String> shortlist = new ArrayList<>();
Which code fragment correctly forms a short list of words containing the letter "e"?
- A. Option D
- B. Option B
- C. Option A
- D. Option C
Answer: D
NEW QUESTION 74
Given:
It is required that if p instanceof Pair then p.isValid() returns true.
Which is the smallest set of visibility changes to insure this requirement is met?
- A. left, right, setLeft, and setRight must be private.
- B. left and right must be private.
- C. isValid must be public.
- D. setLeft and setRight must be protected.
Answer: B
NEW QUESTION 75
Given:
What is the result?
- A. this is it 3
- B. this is it 2
- C. An IndexOutOfBoundsException is thrown at runtime.
- D. is it 0
- E. is it 1
Answer: B
Explanation:
NEW QUESTION 76
Given:
What is required to make the Foo class thread safe?
- A. Replace the lock constructor call with new ReentrantLock (true).
- B. No change is required.
- C. Make the declaration of lock static.
- D. Move the declaration of lock inside the foo method.
Answer: A
NEW QUESTION 77
Given the Customer table structure:
* ID Number Primary Key
* NAME Text Nullable
Given code fragment:
Which statement inserted on line 14 sets NAME column to a NULL value?
- A. Stmt.setNull(2 string, class);
- B. Stmt.setNull(2, java,sql. Types, VARCHAR);
- C. Stmt.setNull(2, null);
- D. Stmt.setNull(2, java.lang, string);
Answer: B
NEW QUESTION 78
Given:
What action ensures successful compilation?
- A. Replace public Color(int c) with private Color(int c).
- B. Replace int c; with private final int c;.
- C. Replace enum Color with public enum Color.
- D. Replace int c; with private int c;.
- E. Replace enum Color implements Serializable with public enum Color.
Answer: A
Explanation:
NEW QUESTION 79
Given the code fragment:
What is the result?
- A. It prints 1 in the infinite loop.
- B. 0
- C. 01
- D. 1
- E. The program prints nothing.
Answer: E
NEW QUESTION 80
A bookstore's sales are represented by a list of Sale objects populated with the name of the customer and the books they purchased.
public class Sale {
private String customer;
private List<Book> items;
// constructor, setters and getters not shown
}
public class Book {
private String name;
private double price;
// constructor, setters and getters not shown
}
Given a list of Sale objects, tList, which code fragment creates a list of total sales for each customer in ascending order?
- A. Option D
- B. Option B
- C. Option A
- D. Option C
Answer: D
NEW QUESTION 81
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