310-056 Sun - Braindumps.com.ua: список вопросов для "Sun Certified Programmer for J2SE 5.0 Upgrade Exam", страница: 1

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

#1. Given:

 1. interface A { public void aMethod(); } 
 2. interface B { public void aMethod(); } 
 3. interface C extends A,B { public void aMethod(); } 
 4. class D implements B { 
 5. } 
 6. Class E extends D implements C { 
 7. public void aMethod() {} 
 8. public void bMethod() {} 
 9. public void cMethod() {} 
 10. }

What is the result?

#2. Given:

 20. public class CreditCard { 
 21. 
 22. private Sting cardID; 
 23. private Integer limit; 
 24. public String ownerName; 
 25. 
 26. public voicd setCardInformation(String cardID, 
 27. . String ownerName, 
 28. Integer limit) { 
 29. this.cardID = cardID; 
 30. this.ownerName = ownerName; 
 31. this.limit = limit; 
 32. } 
 33. }

Which statement is true?

#3. Which two statements are true? (Choose two.)

#4. Given:

 1. Public class Car { 
 2. private int wheelCount; 
 3. private Sting vin: 
 4. public Car (String vin) { 
 5. this.vin = vin; 
 6. this.wheelCount = 4; 
 7. } 
 8. public String drive() { 
 9. return “zoom-zoom” ; 
 10. } 
 11. public String getInfo() { 
 12. return “VIN: ‘ + vin + “ wheels: “ + 
 wheelCount; 
 13. } 
 14. }

What two must the programmer do to correct the compilation errors? (Choose two.)

#5. Given:

 1. class ClassA { 
 2. public int numberOfInstances; 
 3. protected ClassA(int numberOfInstances) { 
 4. this.numberOfInstances = number OfInstances; 
 5. } 
 6. } 
 7. public class ExtendedA extends ClassA { 
 8. private ExtendedA(int numberOfInstances) { 
 9. super(numberOfInstances); 
 10. } 
 11. public static void main(String[] args) { 
 12. ExtendedA ext = new ExtendedA(420); 
 13. System.out.pint(ext. numberOfInstances); 
 14. } 
 15. }

Which statement is true?

#6. Which two code fragments will execute the method doStuff() in a separate thread? (Choose two.)

#7. Given:

 10. public class starter extends thread { 
 11. private int x = 2; 
 12. public static void main(String[] args) 
 throws Exception { 
 13. new Starter () .makeItSo(); 
 14. } 
 15. public Starter() { 
 16. x = 5; 
 17. start(); 
 18. } 
 19. public void makeItSo() throws 
 Exception { 
 20. Join(); 
 21. x = x -1; 
 22. System.out.printIn(x) ; 
 23. } 
 24. public void run() { x *= 2; } 
 25. }

What is the output if the main() method is run?

#8. Given a valid DateFormat object named df, and

 16. Date d = new date(0L); 
 17. String ds = “December 15, 2004’ 
 18. //insert code here

What updates d’s values with the date represented by ds?

#9. Which three statements concerning the use of the java.io.Serializable interface are true? (Choose three.)

#10. Given :

 1. public class TestString3 { 
 2. public static valid main(String[] args) { 
 3. //insert code here 
 4. System.out.printIn(s); 
 5. } 
 6. }

Which two code fragements, inserted independently at line3, generate the ourtput 4247?

[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] ... [12]

ген. 0.28

Дата сервера 11:52 09-01-2009

Sun 310-056

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