310-056 Sun - Braindumps.com.ua: question list for "Sun Certified Programmer for J2SE 5.0 Upgrade Exam", page: 2

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

#11. Given:

 12. public class Wow 
 13. public static void go(short n) {System.out.printIn(“short”);} 
 14. public static void go(short n) {System.out.printIn(“SHORT”);} 
 15. public static void go(short n) {System.out.printIn(“LONG”);} 
 16. public static void main(String [] args) { 
 17. Shorty = 6; 
 18. int z = 7; 
 19. go(y); 
 20. go(z); 
 21. } 
 22. }

What is the result?

#12. Given:

 11. interface DeclareStuff { 
 12. public static final mt EASY = 3; 
 13. void doStuff(intt); } 
 14. public class TestDeclare implements DeclareStuff { 
 15. public static void main(String [] args) { 
 16. int x = 5; 
 17. new TestDeclare().doStuff(++x); 
 18. ) 
 19. void doStuff(int s) { 
 20. s += EASY + ++s; 
 21. System.out.println(”s + s); 
 22. } 
 23. }

What is the result?

#13. Given:

 1. interface DoStuff2 { 
 2. float getRange(int low, int high); } 
 3. 3. 
 4. interface DoMore { 
 5. float getAvg(int a, int b, mt c); } 
 6. 6. 
 7. abstract class DoAbstract implements DoStuff2, DoMore { } 
 8. 8. 
 9. class Dostuff implements Dostuff2 { 
 10. public float getRange(Intx, inty) { return 3.14f; } } 
 11. interface DoAII extends DoMore { 
 12. float getAvg(int a, int b, int c, int d); }

What is the result?

#14. A class games.cards.Poker is correctly defined in the jar file Poker.jar. A user wants to execute the main method of Poker on a UNIX system using the command:
java games.cards.Poker
What allows the user to do this?

#15. Given:

 11. public class Ball{ 
 12. public enum Color { RED, GREEN, BLUE }; 
 13. public void foo(){ 
 14. //insert code here 
 15. { System.out.println(c); ) 
 16. } 
 17. }

Which code inserted at line 14 causes the too method to print RED, GREEN, and BLUE?

#16. Given:

 10. interface Foo { 
 11. int bar (); 
 12. } 
 13. 
 14. public class Beta { 
 15. 
 16. class A implements Foo { 
 17. public int bar( ) { return 1; } 
 18. } 
 19. 
 20. public int fubar( Foo foo ) { return 
 foo.bar( ) ; } 
 21. 
 22. public void testFoo( ) { 
 23. 
 24. class A implements Foo { 
 25. public int bar() { return 2; } 
 26. } 
 27. 
 28. System.out.printIn( fubar( new A( ) ) ); 
 29. } 
 30. 
 31. pubic static void main( String[] argv 
 ) } 
 32. New Beta(). testFoo(); 
 33. } 
 34. }

Which three statements are true? (Choose three.)

#17. Given:

 10. class One { 
 11. public One() { System.out.print(1); } 
 12. } 
 13. class Two extends One { 
 14. public Two() { System.out.print(2); } 
 15. } 
 16. class Three extends Two { 
 17. public Three() { System.out.print(3); } 
 18. } 
 19. public class Numbers{ 
 20. public static void main( String[] argv)  
 { new Three(); } 
 21. ]

What is the result when this code is executed?

#18. Given:

 1. interface TestA { String toString(); } 
 2. public class Test { 
 3. public static void main(String[] args) { 
 4. System.out.println(new TestA() { 
 5. public String toString() { return “test”; } 
 6. }); 
 7. } 
 8. }

What is the result?

#19. Given:

 1. public interface A { 
 2. public void doSomething(String thing); 
 3. } 
 1. public class AImpI implements A { 
 2. public void doSomething(String msg) { } 
 3. } 
 1. public class B 
 2. public A doit( ) { 
 3. // more code here 
 4. } 
 5. 
 6. public execute String execute() { 
 7. // more code here 
 8. } 
 9. } 
 1. public class C extends B { 
 2. public AImpI doit( ) { 
 3. // more code here 
 4. } 
 5. 
 6. public String execute() { 
 7. // more code here 
 8. } 
 9. } 
 1. public object execute() { 
 2. public AImpI doit() { 
 3. // more code here 
 4. } 
 5. 
 6. public Object execute( ) { 
 7. //more code here 
 8. } 
 9. }

Which statement is true about the classes and interfaces in the exhibit?

#20. Given:

 11. Class Person { 
 12. String name = “No name” ; 
 13. Public Person(String nm) { name = nm; } 
 14. } 
 15. 
 16. Class Employee extends Person { 
 17. String empID = “0000”; 
 18. public Employees(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.printIn(e.empID); 
 25. } 
 26. }

What is the result?

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gen. 0.359

Server date 05:39 10-01-2009

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