310-019 Sun - Braindumps.com.ua: question list for "Sun Certified Associate for the Java Platform, Standard Edition", page: 4

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Sun 310-019: Sun Certified Associate for the Java Platform, Standard Edition

#31. Which two describe benefits of encapsulation? (Choose two.)

#32. Given:

 1. class Book { 
 2. public String title; 
 3. 
 4. public void setTitle(String title) { 
 5. if (checkTitle(title)) this.title = title; 
 6. } 
 7. public String getTitle() { 
 8. return title; 
 9. } 
 10. private boolean checkTitle(String newTitle) { 
 11. // code that verifies proposed title change 
 12. } 
 13. }

Which two are true? (Choose two.)

#33. Given:

 1. public class Boat{ 
 2. // insert code here 
 3. public void setGas(int v){ 
 4. gas = v; 
 5. } 
 6. }

Which, inserted at line 2, is valid and demonstrates encapsulation?

#34. Which two are benefits when appropriately using polymorphism? (Choose two.)

#35. Given concrete class B is a subclass of concrete class A, and class A implements interface C, which two are examples of polymorphism? (Choose two.)

#36. Given:

 1. // insert code here 
 2. void play(); 
 3. void stop(); 
 4. } 
 5. // insert code here 
 6. public void play() { } 
 7. public void stop() { } 
 8. }

Which, inserted at lines 1 and 5, allows the code to compile?

#37. Which two are true? (Choose two.)

#38. Given:

 11. class A { 
 12. public void methodX(int i) { /* some code */ } 
 13. public String methodY(String s) { /* some code */ } 
 14. } 
 15. class B extends A { 
 16. public void methodX(int i) { /* some code */ } 
 17. public String methodX(String s) { /* some code */ } 
 18. public String methodY(String s) { /* some code */ } 
 19. }

Which two are true? (Choose two.)

#39. Given:

 11. interface A { 
 12. void someMethod(); 
 13. } 
 14. class B implements A { 
  15. public void someMethod() { } 
 16. }

Which represents the "program to an interface" principle?

#40. Which two are represented in a UML class diagram? (Choose two.)

[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] ... [21]

gen. 0.187

Server date 06:42 10-01-2009

Sun 310-019

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