310-056 Sun - Braindumps.com.ua: question list for "Sun Certified Programmer for J2SE 5.0 Upgrade Exam", page: 4

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Sun 310-056: Sun Certified Programmer for J2SE 5.0 Upgrade Exam

#31. Given:

 11. class A { 
 12. public void process() { System.out.print(”A,”); }} 
 13. class B extends A 
 14. public void process() throws lOException { 
 15. super.process(); 
 16. System.out.print(”B”); 
 17. throw new lOException(); 
 16. }} 
 19. public static void main(String[] args) { 
 20. try { new B().process(); } 
 21. catch (lOException e) { System.out.println(“Exception”); }}

What is the result?

#32. Given:

 1. public class Boxer1 { 
 2. Integer i; 
 3. int x; 
 4. public Boxer1(int y) { 
 5. x = i+y; 
 6. System.out.println(x); 
 7. } 
 6. public static void main(String[] args) { 
 9. new Boxer1 (new lnteger(4)); 
 10. } 
 11.}

What is the result?

#33. Given:

 31 .//some code here 
 32. try { 
 33. // some code here 
 34. // catch (SomeException se) { 
 35. // some code here 
 36. } finally { 
 37. // some code here 
 38. }

Under which three circumstances will the code on line 37 be executed? (Choose three.)

#34. Given:

 11. public static Iterator reverse(List list) { 
 12. Collections.reverse(list); 
 13. return list.iterator(); 
 14. } 
 15. public static void main(String[] args) { 
 16. List list= newArrayList(); 
 17. list.add(“1”); list.add(”2”); list.add(”3”); 
 18. is. for (Object obj: reverse(list)) 
 19. System.out.print(obj + “ , “ ); 
 20. }

What is the result?

#35. Given:

 1. class Pizza { 
 2. java.util.ArrayList toppings; 
 3. public final void addTopping(String topping) { 
 4. toppings.add(topping); 
 5. } 
 6. } 
 7. public class PepperoniPizza extends Pizza { 
 8. public void addTopping(String topping) { 
 9. System.out.println(”Cannot add Toppings”); 
 10. } 
 11. public static void main(String[] args) { 
 12. Pizza pizza = new PepperoniPizza(); 
 13. pizza .addTopping(“Mushrooms”); 
 14. } 
 15. }

What is the result?

#36. Given:

 1. package test; 
 2. 
 3. class Target { 
 4. public String name = “hello”; 
 5. }

What can directly access and change the value of the variable name?

#37. Given:

 11. abstract class Vehicle  
 { public mt speed() (return 0; }} 
 12. class Car extends Vehicle  
 { public mt speed() (return 60; }} 
 13. class RaceCar extends Car  
 { public mt speed() { return 150; }} 
 … 
 21. RaceCar racer = new RaceCar(); 
 22. Car car = new RaceCar(); 
 23. Vehicle vehicle = new RaceCar(); 
 24. System .out.println(racer.speed() + “ , “ + car.speed() 
 25. + “, “ vehicle.speed());

What is the result?

#38. Click the Exhibit button.
What is the result?

#39. Given:

 10. abstract class A { 
 11. abstractvoid a1(); 
 12. void a2() { } 
 13. } 
 14. class B extends A { 
 15. void a1(){ } 
 16, void a2 (){ } 
 17. } 
 18. class C extends B (void do { } } 
 And:

 Ax = new B();  
 C y = new C();  
 A z = new C();

What are four valid examples of polymorphic method calls? (Choose four.)

#40. Given:

 10: public class Hello { 
 11: String title; 
 12: intvalue; 
 13: public Hello() { 
 14: title += “ VVorld”; 
 15: } 
 16: public Hello(int value) { 
 17: this.value = value; 
 18: title = “Hello”; 
 19: Hello(); 
 20: } 
 21: }

and:

 30: Hello c = new Hello(5); 
 31: System.out.println(c.title);

What is the result?

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gen. 0.296

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Sun 310-056

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