NEW QUESTION 1
Given:

Which annotation should be used to remove warnings from compilation?

• A. @SuppressWarnings on the main and print methods
• B. @SuppressWarnings(“unchecked”) on main and @SafeVarargs on the print method
• C. @SuppressWarnings(“rawtypes”) on main and @SafeVarargs on the print method
• D. @SuppressWarnings(“all”) on the main and print methods

Answer: B

Explanation:

NEW QUESTION 2
Given:

What will secure this code from a potential Denial of Service condition?

• A. After Line 4, add indexReader.close().
• B. On Line 3, enclose processData(dataReader) with try with resources.
• C. After Line 3, add dataReader.close().
• D. On Line 1, use try with resources when opening each dataReader.
• E. Before Line 1, check the size of dataFiles to make sure it does not exceed a threshold.

Answer: B

NEW QUESTION 3
Given the code fragment:
var pool = Executors.newFixedThreadPool(5);
Future outcome = pool.submit(() > 1);
Which type of lambda expression is passed into submit()?

• A. java.lang.Runnable
• B. java.util.function.Predicate
• C. java.util.function.Function
• D. java.util.concurrent.Callable

Answer: D

NEW QUESTION 4
Given:

Which loop incurs a compile time error?

• A. the loop starting line 11
• B. the loop starting line 7
• C. the loop starting line 14
• D. the loop starting line 3

Answer: C

NEW QUESTION 5
Given:

Why does D cause a compilation error?

• A. D inherits a() only from C.
• B. D inherits a() from B and C but the return types are incompatible.
• C. D extends more than one interface.
• D. D does not define any method.

Answer: B

NEW QUESTION 6
Given:

Which two are secure serialization of these objects? (Choose two.)

• A. Define the serialPersistentFields array field.
• B. Declare fields transient.
• C. Implement only readResolve to replace the instance with a serial proxy and not writeReplace.
• D. Make the class abstract.
• E. Implement only writeReplace to replace the instance with a serial proxy and not readResolve.

Answer: AC

NEW QUESTION 7
Which is the correct order of possible statements in the structure of a Java class file?

• A. class, package, import
• B. package, import, class
• C. import, package, class
• D. package, class, import
• E. import, class, package

Answer: B

NEW QUESTION 8
Given this enum declaration:

Examine this code: System.out.println(Alphabet.getFirstLetter());
What code should be written at line 3 to make this code print A?

• A. final String getFirstLetter() { return A.toString(); }
• B. static String getFirstLetter() { return Alphabet.values()[1].toString(); }
• C. static String getFirstLetter() { return A.toString(); }
• D. String getFirstLetter() { return A.toString(); }

Answer: C

NEW QUESTION 9
Given:

What is the result?

• A. D
• B. Who
• C. D
• D. Null
• E. An exception is thrown at runtime.
• F. null

Answer: D

Explanation:

NEW QUESTION 10
Given the Person class with age and name along with getter and setter methods, and this code fragment:

What will be the result?

• A. Aman Tom Peter
• B. Tom Aman Peter
• C. Aman Peter Tom
• D. Tom Peter Aman

Answer: C

NEW QUESTION 11
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 B
• C. Option C
• D. Option D

Answer: B

NEW QUESTION 12
Given:

Which two interfaces can be used in lambda expressions? (Choose two.)

• A. MyInterface1
• B. MyInterface3
• C. MyInterface5
• D. MyInterface2
• E. MyInterface4

Answer: CD

NEW QUESTION 13
Given:

What is the type of x?

• A. char
• B. List<Character>
• C. String
• D. List<String>

Answer: C

NEW QUESTION 14
Given the declaration:

Examine this code fragment:
/* Loc1 */ class ProcessOrders { ... }
Which two annotations may be applied at Loc1 in the code fragment? (Choose two.)

• A. @Resource(priority=100)
• B. @Resource(priority=0)
• C. @Resource(name=“Customer1”, priority=100)
• D. @Resource(name=“Customer1”)
• E. @Resource

Answer: AB

NEW QUESTION 15
Given:
String originalPath = “data\\projects\\a-project\\..\\..\\another-project”; Path path = Paths.get(originalPath); System.out.print(path.normalize());
What is the result?

• A. data\another-project
• B. data\projects\a-project\another-project
• C. data\\projects\\a-project\\..\\..\\another-project
• D. data\projects\a-project\..\..\another-project

Answer: D

Explanation:

NEW QUESTION 16
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