310-056 Sun - Braindumps.com.ua: question list for "Sun Certified Programmer for J2SE 5.0 Upgrade Exam", page: 9

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

#81. Given:

 11. String test = a1b2c3”; 
 12. String[] tokens = test.split(”///d”); 
 13. for(String s: tokens) System.out.print(s +“ “);

What is the result?

#82. Given:

 11. class Converter { 
 12. public static void main(String[] args) { 
 13. Integer i = args[0]; 
 14. int j = 12; 
 15. System.out.println(”lt is “ + (i==i) + “that j==i.”); 
 16. } 
 17. }

What is the result when the programmer attempts to compile the code and run it with the command java Converter 12?

#83. Given:

 12. importjava.io.*; 
 13. public class Forest implements Serializable { 
 14. private Tree tree = new Tree(); 
 15. public static void main(String [] args) { 
 16. Forest f = new Forest(); 
 17 try { 
 18. FileOutputStream fs = new FileOutputStream(”Forest.ser”); 
 19. ObjectOutputStream os = new ObjectOutputStream(fs); 
 20. os.writeObject(f); os.close(); 
 21. catch (Exception ex) { ex.printStackTrace } 
 22. } } 
 23. 
 24. class Tree { }

What is the result?

#84. Given:

 int[]myArray= new int[] {1,2,3,4,5};

What allows you to create a list trom this array?

#85. Given:

 1. import java.util.*; 
 2. public class TestSet { 
 3. enum Example { ONE, TWO, THREE } 
 4. public static void main(String[] args) 
 { 
 5. Collection coll = new ArrayList(); 
 6. coll.add(Example.THREE); 
 7. coll.add(Example.THREE); 
 8. coll.add(Exampie.THREE); 
 9. coll.add(Example.TWO); 
 10. coll.add(Example.TWO): 
 11. coll.add(Example.ONE); 
 12. Set set = new HashSet(coll); 
 13. } 
 14. }

Which statement is true about the set variable on line 12?

#86. Given:

 11 . //insert code here 
 12. private N min, max; 
 13. public N getMin() { return mm; } 
 14. public N getMax() { return max; } 
 15. public void add(N added) { 
 16. if (min == null added.doubleValue() < min.doubleValue()) 
 17. min = added; 
 18. if (max == null II added.doubleValue() > max.doubleValue()) 
 19. max= added; 
 20. } 
 21. }

Which two, inserted at line 1 1, will allow the code to compile? (Choose two.)

#87. Given:

 1. public class Drink implements Comparable { 
 2. public String name; 
 3. public int compareTo(Object o) { 
 4. return 0; 
 5. } 
 6. }

and:

 20. Drink one = new Drink(); 
 21. Drink two = new Drink(); 
 22. one.name= “Coffee”; 
 23. two .name= “Tea”; 
 23. TreeSet set = new TreeSet(); 
 24. set.add(one); 
 25. set.add(two);

A programmer iterates over the TreeSet and prints the name of each Drink object. What is the result?

#88. Given a pre-generics implementation of a method:

 11. public static int sum(List list) { 
 12. int sum = 0; 
 13. for ( Iterator iter = list.iterator(); iter.hasNext(); ) { 
 14. int i = ((lnteger)iter.next()).intValue(); 
 15. sum +=I; 
 16. } 
 17. return sum; 
 18. }

Which three changes must be made to the method sum to use generics? (Choose three.)

#89. Given:

 10. public class ClassA { 
 11. public void count(int i) { 
 12. count(++i); 
 13. } 
 14. }

And:

 20. ClassA a = new ClassA(); 
 21. a.count(3);

Which exception or error should be thrown by the virtual machine?

#90. Given:

 11. static class A { 
 12. void process() throws Exception {throw new Exception(); } 
 13. } 
 14. static class B extends A { 
 15. void process() { System.out.println(”B “); } 
 16. } 
 17. public static void main(String[] args) { 
 18. A a = new B (); 
 19. a.process(); 
 20. }

What is the result?

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

gen. 0.298

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