[Nov-2021] Updated Oracle Java SE 1Z0-819 Exam Questions BUNDLE PACK
Master The Oracle Content 1Z0-819 EXAM DUMPS WITH GUARANTEED SUCCESS!
NEW QUESTION 129
Given:
What is the result?
- A. 0 4 9
- B. 0
- C. nothing
- D. 1
Answer: C
NEW QUESTION 130
Given the code fragment:
Which "for" loop produces the same output?
- A. Option D
- B. Option C
- C. Option A
- D. Option B
Answer: B
NEW QUESTION 131
Given:
What prevents this code from compiling?
- A. The calculateSurfaceAreamethod within Rectangle and Ellipserequires a publicaccess modifier.
- B. Cylinderis not properly calling the Rectangle and Ellipseinterfaces' calculateSurfaceArea methods.
- C. The calculateSurfaceAreamethod within Cylinder must be declared default.
- D. Cylinderrequires an implementation of calculateSurfaceAreawith two parameters.
Answer: B
NEW QUESTION 132
Given:
What is the result?
- A. this is it 3
- B. An IndexOutOfBoundsException is thrown at runtime.
- C. is it 1
- D. this is it 2
- E. is it 0
Answer: D
Explanation:
NEW QUESTION 133
Given:
Which is true about line 1?
- A. If the value is not present, nothing is done.
- B. If the value is not present, a NoSuchElementException is thrown at run time.
- C. If the value is not present, a NullPointerException is thrown at run time.
- D. It always executes the System.out::print statement.
Answer: A
Explanation:
NEW QUESTION 134
Given an application with a main module that has this module-info.java file:
Which two are true? (Choose two.)
- A. To run without an error, the application must have at least one module in the module path that provides an implementation of country.CountryDetails.
- B. An implementation of country.countryDetails can be added to 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. A module providing an implementation of country.CountryDetails must have a requires main; directive in its module-info.java file.
- E. A module providing an implementation of country.CountryDetails can be compiled and added without recompiling the main module.
Answer: C,D
NEW QUESTION 135
Given:
What is the result?
- A. nothing
- B. java.lang.IllegalAccessException is thrown.
- C. Student
- D. null
- E. It fails to compile.
Answer: E
NEW QUESTION 136
Given:
What is the result?
- A. 1.99,2.99,0
- B. 1.99,2.99
- C. 1.99,2.99,0.0
- D. The compilation fails.
Answer: D
Explanation:
NEW QUESTION 137
Given the contents:
MessageBundle.properties file:
message=Hello
MessageBundle_en.properties file:
message=Hello (en)
MessageBundle_US.properties file:
message=Hello (US)
MessageBundle_en_US.properties file:
message=Hello (en_US)
MessageBundle_fr_FR.properties file:
message=Bonjour
and the code fragment:
Locale.setDefault(Locale.FRANCE);
Locale currentLocale = new Locale.Builder().setLanguage("en").build();
ResourceBundle messages = ResourceBundle.getBundle("MessageBundle", currentLocale); System.out. println(messages.getString("message")); Which file will display the content on executing the code fragment?
- A. MessageBundle_en.properties
- B. MessageBundle.properties
- C. MessageBundle_fr_FR.properties
- D. MessageBundle_US.properties
- E. MessageBundle_en_US.properties
Answer: C
NEW QUESTION 138
Given:
If file "App.config" is not found, what is the result?
- A. nothing
- B. Exception in thread "main" java.lang.Error:Fatal Error: Configuration File, App.config, is missing.
- C. The compilation fails.
- D. Configuration is OK
Answer: C
Explanation:
NEW QUESTION 139
Given:
Which is true?
- A. System.out is an instance of java.io.OutputStream by default.
- B. System.out is the standard output stream. The stream is open only when System.out is called.
- C. System.in cannot reassign the other stream.
- D. System.in is the standard input stream. The stream is already open.
Answer: D
NEW QUESTION 140
Given:
What is the result?
- A. The code does not compile.
- B. It throws a runtime exception.
- C. Value of Euler = "2.71828"
- D. Value of Euler = 2.71828
Answer: A
NEW QUESTION 141
Given:
What is the result?
- A. The compilation fails due to an error in line 3.
- B. The compilation fails due to an error in line 2.
- C. The compilation fails due to an error in line 5.
- D. The compilation fails due to an error in line 1.
- E. 0
- F. The compilation fails due to an error in line 4.
- G. 1
Answer: G
NEW QUESTION 142
Which set of commands is necessary to create and run a custom runtime image from Java source files?
- A. java, jdeps
- B. javac, jar
- C. javac, jlink
- D. jar, jlink
Answer: C
NEW QUESTION 143
Given:
Which two statements are valid to be written in this interface? (Choose two.)
- A. public void methodF(){System.out.println("F");}
- B. final void methodE();
- C. private abstract void methodC();
- D. public String methodD();
- E. final void methodG(){System.out.println("G");}
- F. public abstract void methodB();
- G. public int x;
Answer: D,F
NEW QUESTION 144
Given:
What is the output?
- A. Bonjour le monde!Bonjour le monde!
- B. Bonjour le monde!Hello world!
- C. Hello world!Bonjour le monde!
- D. Hello world!Hello world!
Answer: B
Explanation:
NEW QUESTION 145
Assume ds is a DataSource and the EMP table is defined appropriately.
What does executing this code fragment do?
- A. inserts one row (101, 'SMITH', 'HR')
- B. throws a SQLException
- C. inserts two rows (101, 'SMITH', 'HR') and (102, 'JONES', NULL)
- D. inserts two rows (101, 'SMITH', 'HR') and (102, 'JONES', 'HR')
Answer: A
NEW QUESTION 146
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