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NEW QUESTION 1
Given this enum declaration:
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Examine this code: System.out.println(Letter.values()[1]);
What code should be written at line 5 for this code to print 200?

  • A. public String toString() { return String.valueOf(ALPHA.v); }
  • B. public String toString() { return String.valueOf(Letter.values()[1]); }
  • C. public String toString() { return String.valueOf(v); }
  • D. String toString() { return “200”; }

Answer: C

Explanation:
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NEW QUESTION 2
Given:
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What is the type of x?

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

Answer: C

NEW QUESTION 3
Given:
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What is the result?

  • A. b1
  • B. 2
  • C. b2
  • D. 1
  • E. b3
  • F. 3
  • G. The compilation fails due to an error in line 1.

Answer: F

Explanation:
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NEW QUESTION 4
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_US.properties
  • B. MessageBundle_en.properties
  • C. MessageBundle_fr_FR.properties
  • D. MessageBundle_US.properties
  • E. MessageBundle.properties

Answer: C

NEW QUESTION 5
Which two statements independently compile? (Choose two.)

  • A. List<? super Short> list = new ArrayList<Number>();
  • B. List<? super Number> list = new ArrayList<Integer>();
  • C. List<? extends Number> list = new ArrayList<Byte>();
  • D. List<? extends Number> list = new ArrayList<Object>();
  • E. List<? super Float> list = new ArrayList<Double>();

Answer: AC

Explanation:
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NEW QUESTION 6
Which two commands are used to identify class and module dependencies? (Choose two.)

  • A. jmod describe
  • B. java Hello.java
  • C. jdeps --list-deps
  • D. jar --show-module-resolution
  • E. java --show-module-resolution

Answer: CE

NEW QUESTION 7
Given:
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What is the result?

  • A. nothing
  • B. It fails to compile.
  • C. A java.lang.IllegalArgumentException is thrown.
  • D. 10

Answer: B

Explanation:
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NEW QUESTION 8
Which two safely validate inputs? (Choose two.)

  • A. Delegate numeric range checking of values to the database.
  • B. Accept only valid characters and input values.
  • C. Use trusted domain-specific libraries to validate inputs.
  • D. Assume inputs have already been validated.
  • E. Modify the input values, as needed, to pass validation.

Answer: AB

NEW QUESTION 9
Given:
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Which two are correct? (Choose two.)
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  • A. Option A
  • B. Option B
  • C. Option C
  • D. Option D

Answer: CD

NEW QUESTION 10
Given:
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Which two changes need to be made to make this class compile? (Choose two.)

  • A. Change Line 1 to an abstract class:public abstract class API {
  • B. Change Line 2 access modifier to protected:protected void checkValue(Object value)throws IllegalArgumentException;
  • C. Change Line 1 to a class:public class API {
  • D. Change Line 1 to extend java.lang.AutoCloseable:public interface API extends AutoCloseable {
  • E. Change Line 2 to an abstract method:public abstract void checkValue(Object value)throws IllegalArgumentException;

Answer: CE

NEW QUESTION 11
Given the formula to calculate a monthly mortgage payment:
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and these declarations:
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How can you code the formula?

  • A. m = p * (r * Math.pow(1 + r, n) / (Math.pow(1 + r, n) - 1));
  • B. m = p * ((r * Math.pow(1 + r, n) / (Math.pow(1 + r, n)) - 1));
  • C. m = p * r * Math.pow(1 + r, n) / Math.pow(1 + r, n) - 1;
  • D. m = p * (r * Math.pow(1 + r, n) / Math.pow(1 + r, n) - 1);

Answer: A

NEW QUESTION 12
Given:
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After which line can we insert assert i < 0 || values[i] <= values[i + 1]; to verify that the values array is partially sorted?

  • A. after line 8
  • B. after line 6
  • C. after line 5
  • D. after line 10

Answer: B

Explanation:
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NEW QUESTION 13
Given:
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and:
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Which code, when inserted on line 10, prints the number of unique localities from the roster list?

  • A. .map(Employee::getLocality).distinct().count();
  • B. map(e > e.getLocality()).count();
  • C. .map(e > e.getLocality()).collect(Collectors.toSet()).count();
  • D. .filter(Employee::getLocality).distinct().count();

Answer: D

NEW QUESTION 14
Given:
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What is known about the Sportscar class?

  • A. The Sportscar class is a subclass of Automobile and inherits its methods.
  • B. The Sportscar subclass cannot override setTurbo method from the superclass Automobile.
  • C. The Sportscar class is a superclass that has more functionality than the Automobile class.
  • D. The Sportscar class inherits the setTurbo method from the superclass Automobile.

Answer: A

NEW QUESTION 15
Given:
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Which two statements are valid to be written in this interface? (Choose two.)

  • A. public abstract void methodB();
  • B. final void methodG(){System.out.println(“G”);}
  • C. private abstract void methodC();
  • D. public String methodD();
  • E. public int x;
  • F. final void methodE();
  • G. public void methodF(){System.out.println(“F”);}

Answer: AD

NEW QUESTION 16
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