NEW QUESTION 1
Given:

What is the result?

• A. An exception is thrown at runtim
• B. 42=(x+y)=42
• C. 42=(x+y)=6
• D. 6=(x+y)=42
• E. 6=(x+y)=6

Answer: D

Explanation:

NEW QUESTION 2
Given:

and

Which code fragment on line 1 makes the s1 set contain the names of all employees born before January 1, 1989?

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: B

NEW QUESTION 3
Given:

And the command: java Main Helloworld What is the result ?

• A. Input: Echo:
• B. Input: Helloworld Echo: Helloworld
• C. Input:Then block until any input comes from System.in.
• D. Input:Echo: Helloworld
• E. A NullPointerException is thrown at run time.

Answer: C

Explanation:

NEW QUESTION 4
Given:

What is the expected result of javac?

• A. javac fails to compile the class and prints the error message, C:\workspace4\Mycar.java:1:error: packagejava does not exist
• B. javac compiles Mycar.java without errors or warnings.
• C. javac fails to compile the class and prints the error message, C:\workspace4\Mycar.java:1:error: expected import java.lang
• D. javac fails to compile the class and prints the error message, Error: Could not find or load main class Mycar.class

Answer: B

NEW QUESTION 5
Which statement about access modifiers is correct?

• A. An instance variable can be declared with the static modifier.
• B. A local variable can be declared with the final modifier.
• C. An abstract method can be declared with the private modifier.
• D. An inner class cannot be declared with the public modifier.
• E. An interface can be declared with the protected modifier.

Answer: B

NEW QUESTION 6
Given:

Which two lines inserted in line 1 will allow this code to compile? (Choose two.)

• A. protected void walk(){}
• B. void walk(){}
• C. abstract void walk();
• D. private void walk(){}
• E. public abstract void walk();

Answer: AE

NEW QUESTION 7
Assume ds is a DataSource and the EMP table is defined appropriately.

What does executing this code fragment do?

• A. inserts two rows (101, 'SMITH', 'HR') and (102, 'JONES', NULL)
• B. inserts two rows (101, 'SMITH', 'HR') and (102, 'JONES', 'HR')
• C. inserts one row (101, 'SMITH', 'HR')
• D. throws a SQLException

Answer: C

NEW QUESTION 8
Given:

What is the result?

• A. 42
• B. The compilation fails due to an error in line 4.
• C. 17
• D. The compilation fails due to an error in line 3.
• E. The compilation fails due to an error in line 2.
• F. The compilation fails due to an error in line 1.
• G. The compilation fails due to an error in line 5.

Answer: A

NEW QUESTION 9
Given the code fragment:

What is the output?

• A. The compilation fail
• B. [-1, -2, -3]
• C. [-3, -2, -1]
• D. A runtime exception is thrown.

Answer: D

NEW QUESTION 10
Given the code fragment:

What is the result?

• A. -1 : 2
• B. 2 : -1
• C. 2 : 3
• D. 3 : 0

Answer: B

NEW QUESTION 11
Which two statements set the default locale used for formatting numbers, currency, and percentages? (Choose two.)

• A. Locale.setDefault(Locale.Category.FORMAT, “zh-CN”);
• B. Locale.setDefault(Locale.Category.FORMAT, Locale.CANADA_FRENCH);
• C. Locale.setDefault(Locale.SIMPLIFIED_CHINESE);
• D. Locale.setDefault(“en_CA”);
• E. Locale.setDefault(“es”, Locale.US);

Answer: BD

NEW QUESTION 12
Given:

Which statement on line 1 enables this code fragment to compile?

• A. Function function = String::toUpperCase;
• B. UnaryOperator function = s > s.toUpperCase();
• C. UnaryOperator<String> function = String::toUpperCase;
• D. Function<String> function = m > m.toUpperCase();

Answer: C

Explanation:

NEW QUESTION 13
Given:

Which statement is true about the Fox class?

• A. Fox class does not have to override inhabit method, so long as it does not try to call it.
• B. Fox class does not have to override the inhabit method if Forest and Town provide compatible implementations.
• C. Fox class must implement either Forest or Town interfaces, but not both.
• D. The inhabit method implementation from the first interface that Fox implements will take precedence.
• E. Fox class must provide implementation for the inhabit method.

Answer: B

NEW QUESTION 14
Given:

executed with this command: java Main one two three
What is the output of this class?

• A. The compilation fails.
• B. 1) one2) two3) three
• C. A java.lang.ArrayIndexOutOfBoundsException is thrown.
• D. 1) one
• E. nothing

Answer: B

NEW QUESTION 15
Given:

What is the output?

• A. Hello world!Bonjour le monde!
• B. Hello world!Hello world!
• C. Bonjour le monde!Hello world!
• D. Bonjour le monde!Bonjour le monde!

Answer: C

Explanation:

NEW QUESTION 16
Which set of commands is necessary to create and run a custom runtime image from Java source files?

• A. java, jdeps
• B. javac, jlink
• C. jar, jlink
• D. javac, jar

Answer: B

NEW QUESTION 17
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 A
• B. Option B
• C. Option C
• D. Option D

Answer: C

NEW QUESTION 18
Given:

What is the result?

• A. WorkingUnknown
• B. Unknown
• C. TuesdayUnknown
• D. The compilation fails.
• E. Tuesday
• F. Working

Answer: B

Explanation:

NEW QUESTION 19
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?

• A. A, because it sends exactly the value of user provided by the calling code.
• B. B, because enquoting values provided by the calling code prevents SQL injection.
• C. A and B are functionally equivalent.
• D. A, because it is unnecessary to enclose identifiers in quotes.
• E. B, because all values provided by the calling code should be enquoted.

Answer: A

NEW QUESTION 20
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