Question 1a

Which choice defines the interface I that has required method f?

Question 1a options:

A	public interface I implements f;
B	public interface I { public void f( ); }
C	public interface I requires f;
D	public interface I {f};

Question 1b

Which choice is the first line of a class A that implements the interface I?

Question 1b options:

A	public class A interface I {
B	public class A implements I {
C	public interface I for class A {
D	public class A extends I {

Question 1c

What is the required method of the Comparable interface?

Question 1c options:

A	ltGt
B	compareTo
C	comparator
D	compare