Given:

Which three classes successfully override printOne()? (Choose three.)

• A.Option D
• B.Option E
• C.Option C
• D.Option F
• E.Option A
• F.Option B

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Given the code fragment:

What is the result?

• A.It prints 1 in the infinite loop.
• B.The program prints nothing.
• C.1
• D.01
• E.0

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Given:

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;

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Given:

Which two statements can be added at line 1 in Bar to successfully compile it? (Choose two.)

• A.public List<Object> foo(Set<CharSequence> m) { ... }
• B.public List<Integer> foo(Set<String> m) { ... }
• C.public List<Integer> foo(Set<CharSequence> m) { ... }
• D.public List<Integer> foo(TreeSet<String> m) { ... }
• E.public ArrayList<Integer> foo(Set<String> m) { ... }
• F.public ArrayList<Number> foo(Set<CharSequence> m) { ... }

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Given:

Why does D cause a compilation error?

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

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