310-035 Sun - Braindumps.com.ua: question list for "Sun Certified Programmer for Java 2 Platform 1.4", page: 8

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Sun 310-035: Sun Certified Programmer for Java 2 Platform 1.4

#71. You want subclasses in any package to have access to members of a superclass. Which is the most restrictive access that accomplishes this objective?

#72. Given:

 1. class Exc0 extends Exception { } 
 2. class Exc1 extends Exc0 { } 
 3. public class Test { 
 4. public static void main(String args[]) { 
 5. try { 
 6. throw new Exc1(); 
 7. } catch (Exc0 e0) { 
 8. System.out.println(“Ex0 caught”); 
 9. } catch (Exception e) { 
 10. System.out.println(“exception caught”); 
 11. } 
 12. } 
 13. }

What is the result?

#73. Given:

 20. public float getSalary(Employee e) { 
 21. assert validEmployee(e); 
 22. float sal = lookupSalary(e); 
 23. assert (sal>0); 
 24. return sal; 
 25. } 
 26. private int getAge(Employee e) { 
 27. assert validEmployee(e); 
 28. int age = lookupAge(e); 
 29. assert (age>0); 
 30. return age; 
 31. }

Which line is a violation of appropriate use of the assertion mechanism?

#74. Given:

 1. public class A { 
 2. void A() { 
 3. System.out.println(“Class A”); 
 4. } 
 5. public static void main(String[] args) { 
 6. new A(); 
 7. } 
 8. }

What is the result?

#75. Given:

 1. class Bar { } 
 1. class Test { 
 2. Bar doBar() { 
 3. Bar b = new Bar(); 
 4. return b; 
 5. } 
 6. public static void main (String args[]) { 
 7. Test t = new Test(); 
 8. Bar newBar = t.doBar(); 
 9. System.out.println(“newBar”); 
 10. newBar = new Bar(); 
 11. System.out.println(“finishing”); 
 12. } 
 13. }

At what point is the Bar object, created on line 3, eligible for garbage collection?

#76. Given:

 1. interface Beta {} 
 2. 
 3. class Alpha implements Beta { 
 4. String testIt() { 
 5. return “Tested”; 
 6. } 
 7. } 
 8. 
 9. public class Main1 { 
 10. static Beta getIt() { 
 11. return new Alpha(); 
 12. } 
 13. public static void main( String[] args ) { 
 14. Beta b = getIt(); 
 15. System.out.println( b.testIt() ); 
 16. } 
 17. }

What is the result?

#77. Given:

 11. public class Test { 
 12. public void foo() { 
 13. assert false; 
 14. assert false; 
 15. } 
 16. public void bar(){ 
 17. while(true){ 
 18. assert false; 
 19. } 
 20. assert false; 
 21. } 
 22. }

What causes compilation to fail?

#78. Which statement is true?

#79. In which two cases does the compiler supply a default constructor for class A? (Choose two)

#80. Given:

 1. public class ReturnIt { 
 2. return Type methodA(byte x, double y) { 
 3. return (short)x / y * 2; 
 4. } 
 5. }

What is the narrowest valid returnType for methodA in line2?

[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] ... [29]

gen. 0.197

Server date 05:42 10-01-2009

Sun 310-035

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