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Which of the following statements can be inserted in the blank line so that the code will compile successfully? (Choose all that apply) public interface CanHop {} public class Frog implements CanHop { public static void main(String[] args) {______________ frog = new TurtleFrog();  } }    public class BrazilianHornedFrog extends Frog {} public class TurtleFrog extends Frog {}  *4 pointsA. FrogB. TurtleFrogC. BrazilianHornedFrogD. CanHopE. ObjectF. Long

Question

Which of the following statements can be inserted in the blank line so that the code will compile successfully? (Choose all that apply) public interface CanHop {} public class Frog implements CanHop { public static void main(String[] args) {______________ frog = new TurtleFrog();  } }    public class BrazilianHornedFrog extends Frog {} public class TurtleFrog extends Frog {}  *4 pointsA. FrogB. TurtleFrogC. BrazilianHornedFrogD. CanHopE. ObjectF. Long

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Solution

The question is asking which types can be used to declare the variable frog such that the code will compile successfully. The variable is being assigned an instance of TurtleFrog, so any type that TurtleFrog is a subtype of can be used.

Here are the options:

A. Frog - This will work because TurtleFrog extends Frog, so TurtleFrog is a subtype of Frog.

B. TurtleFrog - This will work because a TurtleFrog is a TurtleFrog.

C. BrazilianHornedFrog - This will not work because TurtleFrog does not extend BrazilianHornedFrog.

D. CanHop - This will work because Frog implements CanHop, and TurtleFrog extends Frog.

E. Object - This will work because all classes in Java are subtypes of Object.

F. Long - This will not work because TurtleFrog is not a subtype of Long.

So, the correct answers are A, B, D, and E.

This problem has been solved

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