Given:

Which two changes need to be made to make this class compile? (Choose two.)

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

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Given:

What is the output?

• A.Hello world!Bonjour le monde!
• B.Hello world!Hello world!
• C.Bonjour le monde!Hello world!
• D.Bonjour le monde!Bonjour le monde!

Correct Answer: C

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Given:

What is the output?

• A.I am an object array
• B.The compilation fails due to an error in line 1.
• C.I am an array
• D.I am an object

Correct Answer: B

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Given:

Which expression when added at line 1 will produce the output of 1.17?

• A.float z = (float)(Math.round((float)x/y*100)/100);
• B.float z = Math.round((int)(x/y),2);
• C.float z = Math.round((float)x/y,2);
• D.float z = Math.round((float)x/y*100)/(float)100;

Correct Answer: D

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Given:

and omitting the throws FooException clause results in a compilation error.
What statement is true about FooException?

• A.The body of foo can throw FooException or one of its subclasses.
• B.FooException is unchecked.
• C.The body of foo can only throw FooException.
• D.FooException is a subclass of RuntimeError.

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