[2023] New 1Z0-819 exam Free Sample Questions to Practice
Cover Real 1Z0-819 Exam Questions Make Sure You 100% Pass
NEW QUESTION 63
Given:
What is the result?
- A. 1.99,2.99,0
- B. 1.99,2.99,0.0
- C. The compilation fails.
- D. 1.99,2.99
Answer: C
Explanation:
NEW QUESTION 64
Which two statements are true about Java modules? (Choose two.)
- A. If a package is defined in both the named module and the unnamed module, then the package in the unnamed module is ignored.
- B. Any named module can directly access all classes in an automatic module.
- C. Classes found in -classpath are part of an unnamed module.
- D. Modular jars loaded from -classpath are automatic modules.
- E. Modular jars loaded from --module-path are automatic modules.
Answer: C,E
NEW QUESTION 65
Given:
What is the result?
- A. 0
- B. 1
- C. 2
- D. An exception is thrown at runtime.
Answer: B
Explanation:
NEW QUESTION 66
Given:
What is the result?
- A. 6910 3
- B. 0
- C. 10126 3
- D. 6104 3
Answer: D
Explanation:
NEW QUESTION 67
Given the code fragment:
What is the result?
- A. True
- B. False
- C. A java.lang, UnsupportedOperationException is thrown.
- D. A java.lang.NullPointerException is thrown.
Answer: C
NEW QUESTION 68
Given:
and
checkQuality(QUALITY.A);
and
Which code fragment can be inserted into the switch statement to print Best?
- A. QUALITY.A
- B. A
- C. QUALITY.A.ValueOf()
- D. A.toString()
Answer: B
NEW QUESTION 69
Given the code fragment:
Which two statement inserted independently at line 1 enable this code to print PRRT?
- A. break a ;
- B. j--;
- C. continue a;
- D. continue b;
- E. i-;
- F. break b;
Answer: A
NEW QUESTION 70
Given:
Which two method implementations are correct, when inserted independently in line 1? (Choose two.)
- A. Option D
- B. Option A
- C. Option B
- D. Option E
- E. Option C
Answer: B,D
NEW QUESTION 71
Given:
What is the result?
- A. 0
- B. 1
- C. It fails to compile.
- D. A java.lang.IllegalArgumentException is thrown.
- E. nothing
Answer: C
Explanation:
NEW QUESTION 72
Given:
Which statement is true about the Fox class?
- A. Fox class does not have to override the inhabit method if Forest and Town provide compatible implementations.
- B. Fox class must implement either Forest or Town interfaces, but not both.
- C. Fox class must provide implementation for the inhabit method.
- D. The inhabit method implementation from the first interface that Fox implements will take precedence.
- E. Fox class does not have to override inhabit method, so long as it does not try to call it.
Answer: A
NEW QUESTION 73
Given the code fragment:
What is the result?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
NEW QUESTION 74
Given the code fragment:
What is the result?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 75
Given:
Path p1 = Paths.get("/scratch/exam/topsecret/answers");
Path p2 = Paths.get("/scratch/exam/answers/temp.txt");
Path p3 = Paths.get("/scratch/answers/topsecret");
Which two statements print ..\..\..\answers\topsecret? (Choose two.)
- A. System.out.print(p3.relativize(p2));
- B. System.out.print(p1.relativize(p3));
- C. System.out.print(p1.relativize(p2));
- D. System.out.print(p3.relativize(p1));
- E. System.out.print(p2.relativize(p3));
- F. System.out.print(p2.relativize(p1));
Answer: B,D
NEW QUESTION 76
Given:
What is the result?
- A. Value of Euler = "2.71828"
- B. It throws a runtime exception.
- C. Value of Euler = 2.71828
- D. The code does not compile.
Answer: D
NEW QUESTION 77
Given:
Examine these requirements:
* Eliminate code duplication.
* Keep constant the number of methods other classes may implement from this interface.
Which method can be added to meet these requirements?
- A. Option A
- B. Option D
- C. Option B
- D. Option C
Answer: C
NEW QUESTION 78
Given:
What must be added in line 1 to compile this class?
- A. catch(FileNotFoundException | IndexOutOfBoundsException e) { }
- B. catch(FileNotFoundException e) { }catch(IndexOutOfBoundsException e) { }
- C. catch(IOException e) { }
- D. catch(IndexOutOfBoundsException e) { }catch(FileNotFoundException e) { }
- E. catch(FileNotFoundException | IOException e) { }
Answer: C
NEW QUESTION 79
Which three guidelines are used to protect confidential information? (Choose three.)
- A. Limit access to objects holding confidential information.
- B. Validate input before storing confidential information.
- C. Clearly identify and label confidential information.
- D. Manage confidential and other information uniformly.
- E. Treat user input as normal information.
- F. Transparently handle information to improve diagnostics.
- G. Encapsulate confidential information.
Answer: A,B,F
NEW QUESTION 80
Which is a proper JDBC URL?
- A. http://localhost
mysql.jdbc:3306/database - B. jdbe.mysql.com://localhost:3306/database
- C. jdbc:mysql://localhost:3306/database
- D. http://localhost.mysql.com:3306/database
Answer: C
NEW QUESTION 81
Given:
What is the result?
- A. Keys: 0 Values: 0 Map:
- B. Keys: 4 Values: 4 Map: 0
- C. Keys: 4 Values: 4 Map: 4
- D. Keys: 0 Values: 0 Map: 0
- E. The compilation fails.
Answer: C
NEW QUESTION 82
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