56. Click the Exhibit button.

11. class Person {

12. String name = "No name';

13. public Person(String nm) { name = nm; }

14. }

15.

16. class Employee extends Person {

17. String emplD = "0000";

18. public Employee(String id) { empID = id; }

19. }

20.

21. public class EmployeeTest {

22. Public static void main(String[] args) {

23. Employee e = new Employee("4321");

24. System.out.println(e.empID);

25. }

26. }

What is the result?

A. 4321

B. 0000

C. An exception is thrown at runtime.

D. Compilation fails because of an error in line 18.

57. Given:

1. public class Plant {

2. private String name;

3. public Plant(String name) { this.name = name; }

4. public String getName() { return name; }

5. }

1. public class Tree extends Plant {

2. public void growFruit() { }

3. public void dropLeaves() { }

4. }

Which is true?

A. The code will compile without changes.

B. The code will compile if public Tree() { Plant(); } is added to the Tree class.

C. The code will compile if public Plant() { Tree(); } is added to the Plant class.

D. The code will compile if public Plant() { this("fern"); } is added to the Plant class.

E. The code will compile if public Plant() { Plant("fern"); } is added to the Plant class.

58. Click the Exhibit button.

11. public class Bootchy {

12. int bootch;

13. String snootch;

14.

15. public Bootchy() {

16. this("snootchy");

17. System.out.print("first ");

18. }

19.

20. public Bootchy(String snootch) {

21. this(420, "snootchy");

22. System.out.print("second ");

23. }

24.

25. public Bootchy(int bootch, String snootch) {

26. this.bootch = bootch;

27. this.snootch = snootch;

28. System.out.print("third ");

29. }

30.

31. Public static void main(String[] args) {

32. Bootchy b = new Bootchy();

33. System.out.print(b.snootch +" " + b.bootch);

34. }

35. }

What is the result?

A. snootchy 420 third second first

B. snootchy 420 first second third

C. first second third snootchy 420

D. third second first siiootchy 420

E. third first second snootchy 420

F. first second first third snootchy 420

59. Given:

11. public class Test {

12. public enum Dogs {collie, harrier, shepherd};

13. public static void main(String [] args) {

14. Dogs myDog = Dogs.shepherd;

15. switch (myDog) {

16. case collie:

17. System.out.print("collie ");

18. case default:

19. System.out.print("retriever ");

20. case harrier:

21. System.out.print("harrier ");

22. }

23. }

24. }

What is the result?

A. harrier

B. shepherd

C. retriever

D. Compilation fails.

E. retriever harrier

F. An exception is thrown at runtime.

60. Given:

11. public void testIfA() {

12. if(testIfB("True")) {

13. System.out.println("True");

14. } else {

15. System.out.println("Not true");

16. }

17. }

18. public Boolean testIfB(String str) {

19. return Boolean.valueOf(str);

20. }

What is the result when method testIfA is invoked?

A. True

B. Not true

C. An exception is thrown at runtime.

D. Compilation fails because of an error at line 12.

E. Compilation fails because of an error at line 19.