Updated Dec 29, 2024 Test Engine to Practice Test for 1Z0-819 Valid and Updated Dumps
Exam Questions for 1Z0-819 Updated Versions With Test Engine
NEW QUESTION # 11
Given:
What is the result?
- A. java.lang.ArrayIndexOutOfBoundsException thrown
- B. [0,0] = Red[1,0] = Black[2,0] = Blue
- C. [0,0] = Red[0,1] = White[1,0] = Black[1,1] = Blue[2,0] = Yellow[2,1] = Green[3,0] = Violet
- D. [0,0] = Red[0,1] = White[1,0] = Black[2,0] = Blue[2,1] = Yellow[2,2] = Green[2,3] = Violet
Answer: D
Explanation:
NEW QUESTION # 12
How many Thing objects are eligible for garbage collection in line 1?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: A
NEW QUESTION # 13
Given:
You want to implement the java.io.Serializable interface to the MyPersistenceData class.
Which method should be overridden?
- A. nothing
- B. the writeExternal method
- C. the readExternal and writeExternal method
- D. the readExternal method
Answer: C
NEW QUESTION # 14
Given:
This code results in a compilation error.
Which code should be inserted on line 1 for a successful compilation?
- A. Consumer consumer = msg -> { return System.out.print(msg); };
- B. Consumer consumer = (String args) > System.out.print(args);
- C. Consumer consumer = System.out::print;
- D. Consumer consumer = var arg > {System.out.print(arg);};
Answer: C
Explanation:
NEW QUESTION # 15
Which method throws an exception for not-a-number and infinite input values?
- A.
- B.
- C.
- D.
Answer: C
NEW QUESTION # 16
Given:
Which three classes successfully override showFirst ()?
- A.
- B.
- C.
- D.
- E.
- F.
Answer: D
NEW QUESTION # 17
Given an application with a main module that has this module-info.java file:
Which two are true? (Choose two.)
- A. An implementation of country.countryDetails can be added to the main module.
- B. A module providing an implementation of country.CountryDetails can be compiled and added without recompiling the main module.
- C. To compile without an error, the application must have at least one module in the module source path that provides an implementation of country.CountryDetails.
- D. To run without an error, the application must have at least one module in the module path that provides an implementation of country.CountryDetails.
- E. A module providing an implementation of country.CountryDetails must have a requires main; directive in its module-info.java file.
Answer: C,E
NEW QUESTION # 18
Given the content:
What Is the result?
A)
B)
C)
D)
E)
User Username
- A. Option C
- B. Option
- C. Option A
- D. Option D
- E. Option B
Answer: B,D
NEW QUESTION # 19
Given:
When run and all three files exist, what is the state of each reader on Line 1?
- A. All three readers have been closed.
- B. All three readers are still open.
- C. The compilation fails.
- D. Only reader1 has been closed.
Answer: C
NEW QUESTION # 20
Given:
What is the result?
- A. 0
- B. nothing
- C. 0 4 9
- D. 1
Answer: B
NEW QUESTION # 21
Given:
Which two lines of code when inserted in line 1 correctly modifies instance variables? (Choose two.)
- A. cCount = setCCount(c);
- B. setGCount(g);
- C. setCCount(c) = cCount;
- D. tCount = tCount;
- E. aCount = a;
Answer: D,E
NEW QUESTION # 22
Which three initialization statements are correct? (Choose three.)
- A. short sh = (short)'A';
- B. boolean false = (4 != 4);
- C. float x = 1f;
- D. byte b = 10;
char c = b; - E. int x = 12_34;
- F. int[][][] e = {{1,1,1},{2,2,2}};
- G. String contact# = "(+2) (999) (232)";
Answer: A,C,E
NEW QUESTION # 23
Given:
Which two constructors will compile and set the class field strings? (Choose two.)
- A. Option C
- B. Option A
- C. Option D
- D. Option E
- E. Option B
Answer: A,D
NEW QUESTION # 24
Given:
What is the output?
- A. 0
- B. 1
- C. Exception
- D. 2
Answer: A
Explanation:
NEW QUESTION # 25
Assuming the Widget class has a getPrice method, this code does not compile:
Which two statements, independently, would allow this code to compile? (Choose two.)
- A. Replace line 4 with Stream<Widget> widgetStream = widgets.stream();.
- B. Replace line 1 with List<Widget> widgetStream = widgets.stream();.
- C. Replace line 5 with widgetStream.filter((Widget a) > a.getPrice() > 20.00).
- D. Replace line 5 with widgetStream.filter(a > ((Widget)a).getPrice() > 20.00).
Answer: A,D
NEW QUESTION # 26
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