Given:

Which two statements are true if the method is added to Bar? (Choose two.)

• A.public <T> Collection<T> bar(Collection<T> arg) { ... } overloads Foo.foo.
• B.public <T> List<T> foo(Collection<T> arg) { ... } overrides Foo.foo.
• C.public <T> Iterable<T> foo(Collection<T> arg) { ... } overrides Foo.foo.
• D.public <T> Collection<T> foo(Collection<T> arg) { ... } overloads Foo.foo.
• E.public <T> Collection<T> foo(Stream<T> arg) { ... } overloads Foo.foo.
• F.public Collection<String> foo(Collection<String> arg) { ... } overrides Foo.foo.

Comment: *

Name: *

Email: *

Verification: *

Given:

Which two are correct? (Choose two.)

• A.The output will be exactly 2 1 3 4 5.
• B.The program prints 1 4 2 3, but the order is unpredictable.
• C.Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5, but the order is unpredictable.
• D.Replacing forEach() with forEachOrdered(), the program prints 1 2 3 4 5.
• E.Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5.

Correct Answer: B,D

Comment: *

Name: *

Email: *

Verification: *

Given:
Automobile.java

Car.java

What must you do so that the code prints 4?

• A.Remove the parameter from wheels method in line 3.
• B.Add @Override annotation in line 2.
• C.Replace the code in line 2 with Car ob = new Car();
• D.Remove abstract keyword in line 1.

Correct Answer: B

Comment: *

Name: *

Email: *

Verification: *

Given:

Which two independent changes will make the Main class compile? (Choose two.)

• A.Move the entire Student class declaration to a separate Java file, Student.java.
• B.Change line 2 to public Student(String classname).
• C.Change line 1 to public class Student {.
• D.Change line 3 to Student student = new Student("Biology");.
• E.Change line 1 to static class Student {.

Correct Answer: B,D

Comment: *

Name: *

Email: *

Verification: *

Given:

What is the result?

• A.NullPointerException is thrown at line 4.
• B.NullPointerException is thrown at line 10.
• C.A compilation error occurs.
• D.Hello

Correct Answer: D

Comment: *

Name: *

Email: *

Verification: *